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113. Which of the following modifiers are allowed for methods in an Interface? (choose all that apply)
Public
Protected
Abstract
Private
All of the above
Answer
Correct Answer:
Public Abstract
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114. Which of the following MySQL fetch constants imply: if the columns are returned into the array having both a numerical index and the field name as the array index?
MYSQL_BOTH
MYSQL_NUM
MYSQL_ASSOC
All of the above
Answer
Correct Answer:
MYSQL_BOTH
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115.
What are methods in PHP?
Individual actions that an object will be able to perform are defined within the class as methods.
An individual instance of the data structure defined by a class.
These are the function defined inside a class and are used to access object data.
These are the functions in which the objects of the class are saved.
Answer
Correct Answer:
Individual actions that an object will be able to perform are defined within the class as methods. These are the function defined inside a class and are used to access object data.
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116.
Which of these is not a valid PHP XML DOM method?
getElementsByTagName
removeChild()
getElementsById()
appendChild()
Answer
Correct Answer:
getElementsById()
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117.
func_num_args returns ___________________.
Number of parameter passed into the function
Number of variables defined into the function
Both of the above
None of the above
Answer
Correct Answer:
Number of parameter passed into the function
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118.
'Paamayim Nekudotayim' is also called :
Exponentiation operator
Scope resolution operator
Modulus operator
Logical operators
Answer
Correct Answer:
Scope resolution operator
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119.
What will be the output of the code?
4
3
float(3)
floor(3)
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120.
The _________ statement takes all the text/code/markup that exists in the specified file and copies it into the file that uses the statement. Check all that apply.
require
include
get
add
Answer
Correct Answer:
require include
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121.
Where can protected property or method be accessed?
it can only be accessed within the class itself.
it can be accessed outside of the class.
it can only be accessed within the class itself or in descendant classes.
It can not be accessed anywhere.
Answer
Correct Answer:
it can only be accessed within the class itself or in descendant classes.
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122.
How to rename a file in PHP?
file_rename(oldname, newname)
file(oldname, newname)
rename(oldname, newname);
file_change(oldname, newname)
Answer
Correct Answer:
rename(oldname, newname);
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123.
Which of the following is used to send mail in PHP?
send_mail(to,subject,message,headers,parameters);
mail(to,subject,message,headers,parameters);
mail::(to,subject,message,headers,parameters);
mail_to(to,subject,message,headers,parameters);
Answer
Correct Answer:
mail(to,subject,message,headers,parameters);
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124.
Which of the following will detect which request type was used (GET, POST, PUT or DELETE)?
$method = explode("/", substr(@$_SERVER['PATH_INFO'], 1));
$method = $_GET['REQUEST_METHOD'];
$method = $_SERVER['REQUEST_METHOD'];
$method = $_POST['REQUEST_METHOD'];
Answer
Correct Answer:
$method = $_SERVER['REQUEST_METHOD'];
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125.
If the directive session.cookie_lifetime is set to 3600, the cookie will live until .........
3600 min
3600 sec
3600 hrs
The browser is restarted
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126.
Which in-built function will add a value to the end of an array?
array_unshift()
into_array()
inend_array()
array_push()
Answer
Correct Answer:
array_push()
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127.
Placing the ____ symbol before a function tells PHP to suppress any errors generated by that function.
!
@
#
$
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128.
Which of the following options will fail to remove the element "y" when placed in the blank space in the below sample code? $row = array(0 => "x", 1 => "y", 2 => "z", 3 => "w"); ___________ print_r($row);
unset($row[1]);
array_splice($row, 1, 1);
$row=array_diff_key($row, [1 => "mn"]);
array_diff($row, ["y"]);
Answer
Correct Answer:
array_diff($row, ["y"]);
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129.
Which statement is incorrect?
unset($var) remove $var from the symbol table
unset() forces the PHP garbage collector to immediately free up memory
The PHP passthru() function helps in executing a program
The PHP system() function executes an external program and displays only the last line as output
Answer
Correct Answer:
The PHP system() function executes an external program and displays only the last line as output
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130.
Which one of the following keywords is used to inherit our subclass into a superclass?
extends
implements
inherit
include
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131.
Which expression will return true for below sample code? $a = true; $b = false;
$c = ($a and $b);
$c = $a && $b;
$c = $a and $b;
None of the above
Answer
Correct Answer:
$c = $a and $b;
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132.
Which of the following would show an error in PHP?
echo @(1/0);
$var = @new className();
@echo 1;
@functionName();
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133.
Which statement is not correct? $x = null;
empty($x) return TRUE
is_null($x) return FALSE
isset($x) return FALSE
None of the above
Answer
Correct Answer:
empty($x) return TRUE
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134.
By default, every database connection opened by a script is either explicitly closed by the user during run time or released ____________ at the end of the script.
automatically
manually
server-side
sql
Answer
Correct Answer:
automatically
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135.
Which statement is not correct?
PHP_OS: Returns information about the operating system PHP is running on
PHP_EOL: The correct 'End Of Line' symbol for this platform
PHP_MAXPATHLEN: The maximum length of filenames (including path) supported by this build of PHP.
PHP_INT_SIZE: The size of an integer in bytes in this build of PHP.
Answer
Correct Answer:
PHP_OS: Returns information about the operating system PHP is running on
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136.
Which of the following would produce an error: $currentDT=new DateTime();
$newDT=clone $currentDT;
$currentDT->modify("+1 Hour");
$currentDT->add(new DateInterval('P00D'));
$currentDT->getTimezone(new DateTimezone('UTC'));
Answer
Correct Answer:
$newDT=clone $currentDT;
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137.
Which of the following is not a Super Global variable in PHP?
$_ENV
$GLOBALS
$_SERVER
None of the above
Answer
Correct Answer:
None of the above
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138.
Which of the following will decode a JSON variable $json to an object? $json = '{"abc":1,"def":2,"ghi":3,"jkl":4,"mno":5}';
$object = json_decode($json);
$object = json_decode($json,true);
Both of the above
None of the above
Answer
Correct Answer:
$object = json_decode($json,true);
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139.
What would be the output of the I and II sample codes: I) $a = array(); $b = $a; $b['foo'] = 42; echo $a['foo']; II) $a = new StdClass(); $b = $a; $b->foo = 42; echo $a->foo;
42, 42
NULL,42
42,NULL
NULL,NULL
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140.
Which of the following is the correct option to get a numerically indexed array containing all defined timezone identifiers in PHP?
$array=DateTimeZone::listIdentifiers(DateTimeZone::UTC);
$array=DateTimeZone::listIdentifiers(DateTimeZone:ALL);
$array=DateTimeZone::listIdentifiers(DateTimeZone:UTC);
$array=DateTimeZone::listIdentifiers(DateTimeZone::ALL);
Answer
Correct Answer:
$array=DateTimeZone::listIdentifiers(DateTimeZone:ALL);
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141.
Choose the correct option to force redirect from http to https:
RewriteCond %{HTTPS} on RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
RewriteCond %{HTTPS} off RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
RewriteCond %{HTTP} off RewriteRule (\d|\w|\/\/)* https://%{HTTP_HOST}%{REQUEST_URI}
RewriteCond %{HTTPS} on RewriteRule [\w\W]* https://%{HTTP_HOST}%{REQUEST_URI}
Answer
Correct Answer:
RewriteCond %{HTTPS} on RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
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142.
What will be the output of the following code? $var1='/'; $var2='/&%#!'; echo (strpos($var1, $var2)? 'Found' : 'Not found');
Not found
Found
Syntax error
Function not found
Answer
Correct Answer:
Not found
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143.
What would be the output of the following code? $str = "0011110000bsts11100"; echo trim($str,'010s');
bt
bst
bsts
0011110000bsts11100
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144.
What would be the output of the following code? $parts = parse_url("https://example.com/test/1234?testing&val&id=1&&=23&row=4"); parse_str($parts['query'], $query); echo count($query);
2
3
4
5
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145.
What will be the output of the below code? $tmp ="Dragon%%Ball%%Z%"; $arr = explode('%',trim($tmp)); echo count($arr);
4
3
5
6
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146.
What will be the output of the following code? $arr = array ("THEY", "WE", array ("I", "YOU"), "YOUR"); echo (count($arr, 1));
3
4
5
6
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147.
Which of the following is not the correct way to create an empty object in PHP?
$obj = (object)[];
$obj = new class();
$obj = new stdClass();
$obj = new \stdClass;
Answer
Correct Answer:
$obj = new class();
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148.
Which expression would return true?
$c="a" !== " ";
$c="a" !== "a";
$c="a" ==! " ";
$c="a" ==! "a";
Answer
Correct Answer:
$c="a" !== " ";
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149.
Which method is used to tweak an object’s cloning behavior?
clone()
__clone()
_clone
object_clone()
Answer
Correct Answer:
__clone()
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150.
What will be the output of the following code? echo (1234 == '1234 test' ? 'Equal' : 'Not equal' );
Not equal
Equal
None
Error
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151.
How do you access result set meta data?
?php $mysqli = new mysqli("abcs.com", "user", "password", "database"); if ($mysqli->connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump(.$res->fetch_fields(1)); ?>
connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump($res->fetch_fields()); ?>
connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS , 'Hello' AS _two FROM DUAL"); var_dump(res->$fetch_fields()); ?>
connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump(res->.fetch_fields(0)); ?>
Answer
Correct Answer:
connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } $res = $mysqli->query("SELECT 1 AS _one, 'Hello' AS _two FROM DUAL"); var_dump($res->fetch_fields()); ?>
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152.
Xdebug is a PHP __________, the information which Xdebug provides is about stack and functions with full parameter for user defined functions, memory allocation and support for infinite recursions.
Framework
Library
Extension
Class
Answer
Correct Answer:
Extension
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153.
What will be the output of the following PHP code? array ("min_range"=>0, "max_range"=>256)); if (!filter_var($var, FILTER_VALIDATE_INT, $int_options)) echo("Integer is not valid"); else echo("Integer is valid"); ?>
No output is returned
Integer is not valid
Integer is valid
Error
Answer
Correct Answer:
Integer is not valid
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154.
Which of the following functions are provided in the mysqlnd plugin API? (choose all that apply)
mysqlnd_plugin_get_count()
mysqlnd_plugin_get_plugin_connection_data()
mysqlnd_plugin_get_plugin_protocol_data()
mysqlnd_send_meta_get_methods()
mysqlnd_protocol_get_methods()
Answer
Correct Answer:
mysqlnd_plugin_get_plugin_connection_data() mysqlnd_plugin_get_plugin_protocol_data() mysqlnd_protocol_get_methods()
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155.
What is the output of the following code? class Foo { private $foo; protected $bar; public $test; public function __construct() { $this->foo = 1; $this->bar = 2; $this->test = 3; } } print_r( (array) new Foo );
Array ( [foo] => 1 [bar] => 2 [test] => 3 )
Array ( [Foofoo] => 1 [*bar] => 2 [test] => 3 )
Array ( [Foo] => 1 [*bar] => 2 [test] => 3 )
Array ( [Foofoo] => 1 [bar] => 2 [test] => 3 )
Answer
Correct Answer:
Array ( [Foofoo] => 1 [*bar] => 2 [test] => 3 )
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156.
Which of the following are valid MySQLi Configuration Options? (choose all that apply)
mysqli.allow_persistent
mysqli.rollback_on_cached_size
mysqli.default_port
mysqli.default_socket
Answer
Correct Answer:
mysqli.allow_persistent mysqli.default_port mysqli.default_socket
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157.
What will be the output of following code? <?php $i = 016; echo $i / 2; ?>
7
8
016
Fatal Error
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158.
What will the output of following code:- <?php class BaseClass { public function test() { echo "BaseClass::test() called\n"; } final public function moreTesting() { echo "BaseClass::moreTesting() called\n"; } } class ChildClass extends BaseClass { public function moreTesting() { echo "ChildClass::moreTesting() called\n"; } } $obj=new ChildClass; $obj->moreTesting(); ?>
ChildClass::moreTesting() called
Results in Fatal error: Cannot override final method BaseClass::moreTesting()
BaseClass::moreTesting() called
BaseClass::moreTesting() called ChildClass::moreTesting() called
Answer
Correct Answer:
Results in Fatal error: Cannot override final method BaseClass::moreTesting()
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159.
Which magic method is used to implement overloading in PHP?
__call
__invoke
__wakeup
__unset
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160.
What will be the output of following code:- <?php class A { public static function foo() { static::who(); } public static function who() { echo __CLASS__."\n"; } } class B extends A { public static function test() { A::foo(); parent::foo(); self::foo(); } public static function who() { echo __CLASS__."\n"; } } class C extends B { public static function who() { echo __CLASS__."\n"; } } C::test(); ?>
A C C
A A A
C C A
C A C
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161.
Which of the following code can be used to send email to multiple recipients?
$recipients = array('recipient1@domain.com', 'recipient2@domain.com); mail($recipients, $subject, $message, $headers);
$recipients = array('recipient1@domain.com', 'recipient2@domain.com); mail(implode(',', $recipients), $subject, $message, $headers);
$recipients = array('recipient1@domain.com', 'recipient2@domain.com); mail(implode(',', $recipients), $message,$subject, $headers);
All of the above
Answer
Correct Answer:
$recipients = array('recipient1@domain.com', 'recipient2@domain.com); mail(implode(',', $recipients), $subject, $message, $headers);
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162.
What is the procedural style of associative array?
$row = mysqli_fetch_array($result, MYSQLI_NUM);
printf (“%s (%s)/n”, $row[0], $row[1],);
$row = mysqli_fetch_array($result, MYSQLI_BOTH);
printf (“%s (%s)/n”, $row[0], $row[“CountryCode”],);
$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
printf (“%s (%s)/n”, $row[“Name”], $row[“CountryCode”],);
$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
printf (“%s (%s)/n”, $row[“Name”], $row[0],);
Answer
Correct Answer:
$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
printf (“%s (%s)/n”, $row[“Name”], $row[“CountryCode”],);
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163.
What is the Object oriented style of associative array?
$row = $result->fetch_array(MYSQLI_BOTH); printf ("%s (%s)\n", $row[0], $row["CountryCode"]);
$row = $result->fetch_array(MYSQLI_ASSOC); printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]);
$row = $result->fetch_array(MYSQLI_BOTH); printf ("%s (%s)\n", .row[1], $row["CountryCode"]);
$row = $result->fetch_array(MYSQLI_NUM); printf ("%s (%s)\n", $row[0], $row[1]);
Answer
Correct Answer:
$row = $result->fetch_array(MYSQLI_ASSOC); printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]);
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164.
What are the main PHP API offerings for using MYSQL?
PHP Data Objects (PDO)
PHP’s mysqli Extention
PHP’s MYSQL Extention
All of the above
Answer
Correct Answer:
All of the above
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165.
There are a number of mysqlnd plugins already available. These include: (choose all that apply)
PECL/mysqlnd_pscache - Prepared Statement Handle Cache plugin
PECL/mysqlnd_sip - SQL Injection Protection plugin
PECL/mysqlnd_dc - Data Connect plugin
PECL/mysqlnd_uh - User Handler plugin
PECL/mysqlnd_qc - Query Cache plugin
Answer
Correct Answer:
PECL/mysqlnd_pscache - Prepared Statement Handle Cache plugin PECL/mysqlnd_sip - SQL Injection Protection plugin PECL/mysqlnd_uh - User Handler plugin PECL/mysqlnd_qc - Query Cache plugin
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166.
What are the different forms of Polymorphism?
Function overloading
Operator overloading
Both of the above
None of the above
Answer
Correct Answer:
Operator overloading
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167.
When Designing Classes with UML, a class at its core has the following components? (choose all that apply)
Constructor
Public
Private
Methods
Attributes
Answer
Correct Answer:
Constructor Methods Attributes
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168.
What are the two forms of Polymorphsim?
A) function overloading
B) operator overloading
C) method overloading
D) A & B
E) B & C
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169.
What is the output when the following code is executed? <?php function myFun($a) { if (!$a) { throw new Exception('Value init.'); } return 3/$a; } try { echo myFun(3) . "\n"; } catch (Exception $e) { echo 'Caught exception: ', $e->getMessage(), "\n"; } finally { echo "first\n"; } try { echo myFun(1) . "\n"; } catch (Exception $e) { echo 'Caught exception: ', $e->getMessage(), "\n"; } finally { echo "second\n"; } echo "Hello PHP Example\n"; ?>
Value init.3 first 1 second Hello PHP Example
Value init.1 first 3 second Hello PHP Example
1 first 3 second Hello PHP Example
Value init.1 first 5 second Hello PHP Example
Answer
Correct Answer:
1 first 3 second Hello PHP Example
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170.
The following mysqlnd C API calls are monitored by the plugin to check for which transient errors? (choose all that apply)
change_user(),
set_autocomplete(),
set_server_option()
set_autobegint(),
tx_commit_or_rollback().
Answer
Correct Answer:
change_user(), set_server_option() tx_commit_or_rollback().
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171.
The global transaction is either ended by calling __ or by __ in case of an error?
mysqlnd_ms_xa_commit, mysqli_ms_xa_callback
mysqlnd_ms_xa_autocommit, mysqlnd_ms_xa_rollback
mysqlnd_ms_xa_commit, mysqlnd_ms_xa_rollback
mysqli_ms_xa_commit, mysqlnd_ms_xa_rollback
Answer
Correct Answer:
mysqlnd_ms_xa_commit, mysqlnd_ms_xa_rollback
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172.
How can you switch connection to appropriate shard and insert record of the manual partition?
mysqlnd_ms_fabric_select_global($mysqli, “test.fabrictest”);
if ( !$mysqli->query(“CREATE TABLE test.fabrictest(id INT NOT NULL PRIMARY KEY)” )) {
die(sprintf(“[%d] %s\n” , $mysqli->errno, $mysqli->error));
}
mysqlnd_ms_fabric_select_shard($mysqli, “test.fabrictest”, 10);
if ( !$res = $mysqli->query(“SELECT id FROM test WHERE id = 10”))) {
die(sprintf(“[%d] %s\n” , $mysqli->errno, $mysqli->error));
}
mysqlnd_ms_fabric_select_shard($mysqli, “test.fabrictest”, 10);
if ( !$res = $mysqli->query(“INSERT INTO fabrictest (id) VALUES (10)”))) {
die(sprintf(“[%d] %s\n” , $mysqli->errno, $mysqli->error));
}
mysqlnd_ms_fabric_select_shard($mysqli, “test.fabrictest”, 10);
if ( !$res = $mysqli->query(“INSERT INTO fabrictest (id) VALUES (10)”))) {
die(sprintf(“[$d] %s\n” , .mysqli->errno, $mysqli->error));
}
Answer
Correct Answer:
mysqlnd_ms_fabric_select_shard($mysqli, “test.fabrictest”, 10);
if ( !$res = $mysqli->query(“INSERT INTO fabrictest (id) VALUES (10)”))) {
die(sprintf(“[%d] %s\n” , $mysqli->errno, $mysqli->error));
}
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173.
You can apply the following commands for mysqlnd or libmysqlclient configuration?
$ ./configure --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-mysql=mysqlnd
./configure --with-mysqli=/path/to/mysql_config --with-pdo-mysql=/path/to/mysql_config --with-ma-mas
$ ./configure --with->mysqli=mysqlnd ->with-pdo-mysql=mysqlnd --with-mysql=mysqlilnd
$ ./configure --with-mysqli --with-pdo-mysql --with-mysql
Answer
Correct Answer:
$ ./configure --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-mysql=mysqlnd $ ./configure --with-mysqli --with-pdo-mysql --with-mysql
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174.
Which is a callback function or object method taking the following parameters?
&buffer
&errormsg
buflen
stream
All of the above
Answer
Correct Answer:
All of the above
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175.
The PDO_MYSQL Data Source Name (DSN) is composed of the following elements?
user_pass
db_table
dbname
unix_socket
charset
Answer
Correct Answer:
dbname unix_socket charset
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176.
What is the output when the following code is executed? function callFun( &$arg ) { $return = $arg; $arg += 1; return $return; } $a = 3; $b = callFun( $a ); $c = callFun($a); echo $a; echo ' \n '; echo $b; echo ' \n '; echo $c;
1 \n 3 \n 4
3 \n 4 \n 4
5 \n 3 \n 4
4 \n 3 \n 5
Answer
Correct Answer:
5 \n 3 \n 4
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177.
What are the short explanations of the configuration directives? (choose all that apply)
mysqli.allow_persistent
mysqli.rollback_on_cached_size
mysqli.default_port
mysqli.default_socket
Answer
Correct Answer:
mysqli.allow_persistent
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178.
When connecting to a MySQL database server, what are the main API options? (choose all that apply)
PHP Data Objects (PDO)
PHP's mysqlis Extension
PHP's MySQL Extension
All of the above
Answer
Correct Answer:
PHP Data Objects (PDO) PHP's MySQL Extension
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179.
How you can send Multiple email recipients all go into the address field, with commas separating?
$headers = "From:sender@example.com\r\n"; $recipients = "abc@hotmail.com,xyz@gmail.com"; mail($recipients, "This is the subject","This is the mail body", $headers);
$mailsend = mail("receiver@receipthost, abc@hotmail.com, xyz@gmail.com", "The Sample Subjects Here", "Body of e-mail."); print("$mailsend");
$address = "abc@hotmail.com"; $Subject = "I want a Car"; $body = "Smith"; $mailsend = mail("$address", "$Subject", "$body."); print("$mailsend");
All of the above
Answer
Correct Answer:
$mailsend = mail("receiver@receipthost, abc@hotmail.com, xyz@gmail.com", "The Sample Subjects Here", "Body of e-mail."); print("$mailsend");
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180.
What is a type of PHP error severity? (choose all that apply)
Errors (E_ERROR)
Stri dynamic problems (E_STRI)
Notices (E_NOTICE)
Warnings (E_WARNING)
All of the above
Answer
Correct Answer:
Errors (E_ERROR)
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181.
Which function can be used to determine if a file exists? (choose all that apply)
is_readable()
file_exists()
feof()
is_file_exists()
Answer
Correct Answer:
is_readable()
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182.
After the following query is executed using PHP, which function can be used to count the number of rows returned? (choose any that apply)
mysqli_affected_rows()
mysqli_num_rows()
mysqli_use_result()
mysqli_fetch_lengths()
Answer
Correct Answer:
mysqli_affected_rows()
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183.
Advantages of PHP-GTK include the following? (choose all that apply)
Cross-platform
Officially supported PHP project
GTK+ doesn’t look native on all platforms; the look and feel of GTK/apps is most at home on Linux-type OSs
Provides direct binding to the GTK+ toolkit
Answer
Correct Answer:
Cross-platform Officially supported PHP project Provides direct binding to the GTK+ toolkit
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184.
What are the Scope of variables? (choose all that apply)
Dynamic
Static
Parameter
Global
All of the above
Answer
Correct Answer:
Static Parameter Global
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185.
What are the Server object Methods?
$_SERVER['REMOTE_PORT']
$_SERVER['DOCUMENT_ROOT']
$_SERVER['DOCUMENT_ROOT']
$_SERVER['DOCUMENT_OBJ']
Answer
Correct Answer:
$_SERVER['REMOTE_PORT'] $_SERVER['DOCUMENT_ROOT'] $_SERVER['DOCUMENT_ROOT']
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186.
Capturing Logging - Use these and send output to $logger as follows?
register_shutdown_function()
set_exception_handler()
set_error_handler()
set_session_handler()
Answer
Correct Answer:
register_shutdown_function() set_exception_handler() set_error_handler()
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187.
Starting External Processes from PHP/Shelling Out there are numerous functions available in PHP to achieve this. Which one applies?
system(): Executes a program in the current process space
exec(): Executes a program and sends the text output to the user
proc_open(): Like popen(), but with more control. Allows both reading and writing at the same time
passthru(): Executes a command and shell the binary output to the user
Answer
Correct Answer:
exec(): Executes a program and sends the text output to the user proc_open(): Like popen(), but with more control. Allows both reading and writing at the same time passthru(): Executes a command and shell the binary output to the user
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188.
Which MIME type needs to be used to send attachment in mail?
text/html
text/plain
application/mixed
multipart/mixed
Answer
Correct Answer:
multipart/mixed
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189.
what will be the output of the program if the value of ‘cate’ remains 5?
1. <?php
2. $cate=5;
3. …
4. …
5. If ($cate==5)
6. {
7. ?>
8. Correct category!
9. <?php
10. } else {
11. ?>
12. Incorrect category!
13. <?php
14. }
15. ?>
Correct category!
Incorrect category!
Error due to use of invalid operator in line 6:”if ($cate==5)”
Error due to incorrect syntax at line 8, 10, 12 and 14
Answer
Correct Answer:
Error due to use of invalid operator in line 6:”if ($cate==5)”
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190.
What does array_pop($array) do?
Return all the values in $array.
Returns the last value in $array and removes it from the array.
Adds values onto the end of $array.
Returns a string containing a randomly selected key from $array.
Answer
Correct Answer:
Returns the last value in $array and removes it from the array.
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191.
<?php $colors = array("red", "green", "blue", "yellow"); foreach ($colors as $value) { echo "$value "; } ?> What will be the output of this PHP code?
red green blue yellow
red
yellow
no output
Answer
Correct Answer:
red green blue yellow
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192.
Following functions identify the presence of a substring and its position in a larger string?
stristr
strips
stripos
strchr
strstc
Answer
Correct Answer:
stristr strips stripos strchr strstc
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193.
The hash array contains the various attributes of the XML-RPC call as an associative array as follows?
Array of arguments to the method
Hostname of the web service offering the method
URL path to the server file
Associative array of options, as for the server
Answer
Correct Answer:
Array of arguments to the method Hostname of the web service offering the method URL path to the server file Associative array of options, as for the server
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194.
PHP enables to set a default error handler using the set_error_handler() function and include the following parameters will be passed to the user-defined error handler function?
array $errcontext [optional]
integer $errline [optional]
string $errfile [optional]
string $errno
Answer
Correct Answer:
integer $errline [optional] string $errfile [optional] string $errno
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195.
Following functions change the format of a string, according to a series of special characters?
vsprintf
sprintf
preg_filter
money_format
explode
Answer
Correct Answer:
vsprintf sprintf preg_filter
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196.
Which of the following are Vaild variable names in PHP?
$~yy
$yy-yy
$1
None of the above
Answer
Correct Answer:
None of the above
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197.
Which of the following code snippet is True for Convert JSON string to Object?
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonobj = json_decode($jsonvar); print_r($jsonobj); echo $jsonobj[0]->name; ?>
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonobj = json_decode($jsonvar); print_r(jsonobj); echo $jsonobj[0].$name; ?>
<? $jsonvar = ["name":"Jhon","gender":"male"]; $jsonobj = json_decode(jsonvar); print_r($jsonobj); echo $jsonobj[0]->name; ?>
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonobj = json_decode(jsonvar); print_r(jsonobj); echo $jsonobj[0].name; ?>
Answer
Correct Answer:
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonobj = json_decode($jsonvar); print_r($jsonobj); echo $jsonobj[0]->name; ?>
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198.
Which of the following code snippet is True for Convert JSON string to Array?
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonobj = json_decode($someJSON); print_r($jsonobj); echo $jsonobj[0].$name; ?>
<? $jsonvar = '["name":"Jhon","gender":"male"]'; $jsonarray = json_decode(jsonvar, true); print_r($jsonarray); echo $jsonarray[0][$name]; ?>
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonarray = json_decode($jsonvar, true); print_r($jsonarray); echo $jsonarray[0]["name"]; ?>
<? $jsonvar = '["name":"Jhon","gender":"male"]'; $jsonobj = json_decode($someJSON); print_r($jsonobj); echo $jsonobj[0].$name; ?>
Answer
Correct Answer:
<? $jsonvar = '[{"name":"Jhon","gender":"male"}]'; $jsonarray = json_decode($jsonvar, true); print_r($jsonarray); echo $jsonarray[0]["name"]; ?>
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199.
Which of the following query grabs the Top 10 scores from database, sorting by score and timestamp?
<?php require ('connectToDatabase.php'); $query = "SELECT FROM userdata ORDER by `score` LIMIT 10"; $result = $connquery(sql); if ($result->num_rows > 0) { while($row = $result->fetch_assoc()) { echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>"; } } else { echo "<div>No records found.</div>"; } $conn->close(); ?>
<?php require ('connectToDatabase.php'); $query = "SELECT * FROM `userdata` ORDER by score ASC 10"; $result = $conn->query(sql); if ($result-> 0) { while($row = $result->fetch_assoc()) { echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>"; } } else { echo "<div>No records found.</div>"; } $conn->close(); ?>
<?php require ('connectToDatabase.php'); $query = "SELECT * FROM `userdata` ORDER by `score` ASC LIMIT 10"; $result = $conn->query($sql); if ($result->num_rows > 0) { while($row = $result->fetch_assoc()) { echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>"; } } else { echo "<div>No records found.</div>"; } $conn->close(); ?>
<?php require ('connectToDatabase.php'); $query = "SELECT * FROM userdata ORDER by `score` ASC 10"; $result = $conn->query($sql); if ($result->num_rows > result.length) { while($row = $result->fetch_assoc()) { echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>"; } } else { echo "<div>No records found.</div>"; } $conn->close(); ?>
Answer
Correct Answer:
<?php require ('connectToDatabase.php'); $query = "SELECT * FROM `userdata` ORDER by `score` ASC LIMIT 10"; $result = $conn->query($sql); if ($result->num_rows > 0) { while($row = $result->fetch_assoc()) { echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>"; } } else { echo "<div>No records found.</div>"; } $conn->close(); ?>
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200.
Which of the following type cast is not correct? <?php $fig = 23; $varbl = (real) $fig; $varb2 = (double) $fig; $varb3 = (decimal) $fig; $varb4 = (bool) $fig; ?>
real
double
decimal
boolean
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201.
What will be the output of the following code? function fn(&$var) { $var = $var - ($var/10 * 5); return $var; } echo fn(100);
100
50
98
Error message
None of these
Answer
Correct Answer:
Error message
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202.
What will be the output of the following code? $var = 10; function fn() { $var = 20; return $var; } fn(); echo $var;
10
20
Undefined Variable
Syntax Error
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203.
<?php
$favcolor = “green”;
switch ($favcolor) {
case “red”:
echo “Your favorite color is red!”;
break;
case “blue”:
echo “Your favorite color is blue!”;
break;
case “green”:
echo “Your favorite color is green!”;
break;
default:
echo “Your favorite color is neither red, blue, nor green!”;
}
?>
What will be the output of this PHP code?
Your favorite color is red! Your favorite color is blue! Your favorite color is green!
Your favorite color is neither red, blue, nor green!
Your favorite color is green!
No output
Answer
Correct Answer:
Your favorite color is green!
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204.
How to create database with PHP in MySQL server?
create_db(‘database’);
mysql_db(‘database’);
mysql_create_db(‘database’);
mysql_server_create_db(‘database’);
Answer
Correct Answer:
mysql_create_db(‘database’);
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205.
What is the syntax of a class in PHP?
class ClassName { // Class properties and methods go here }
ClassName class { // Class properties and methods go here }
class ClassName = function() { // Class properties and methods go here }
class ClassName ({ // Class properties and methods go here })
Answer
Correct Answer:
class ClassName { // Class properties and methods go here }
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206.
How to connect with MySQL server in PHP?
database_connect(server, username, password)
mysql_connect(host, username, password)
mysql(server, username, password)
connect(server, username, password)
Answer
Correct Answer:
mysql_connect(host, username, password)
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207.
What is the correct syntax of constructor function?
function construct($var, $var2){ //code }
_construct($var1, $var2){ //code}
function _construct($var1, $var2){ //code }
function constructor($var1, $var2){ //code }
Answer
Correct Answer:
function _construct($var1, $var2){ //code }
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208.
How to remove whitespace from the beginning and end of $string variable?
cut($string);
removespace($string);
shorten($string);
trim($string);
Answer
Correct Answer:
trim($string);
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209.
How to drop a database in MySQL server?
mysql_drop_db(‘database’);
drop_db(‘database’);
mysql_drop(‘database’);
mysql(‘database’) drop;
Answer
Correct Answer:
mysql_drop_db(‘database’);
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210.
<?php
$string = ‘I wish I had 3three some capitalization’;
Echo ucwords($string);
?>
What will be the output of above code?
I wish i had 3three some capitalization
i wish i had 3three some capitalization
I Wish I Had 3three Some Capitalization
No output
Answer
Correct Answer:
I Wish I Had 3three Some Capitalization
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211.
<?php
$arr = array(‘Hello’, ‘World!’, ‘Beautiful’, ‘Day!’);
Echo implode(“ ”, $arr);
?>
What will be the output of above code?
HelloWorld!BeautifulDay!
‘Hello’, ‘World!’, ‘Beautiful’, ‘Day!’
Hello World! Beautiful Day!
No output
Answer
Correct Answer:
Hello World! Beautiful Day!
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212.
PHP provides a range of ways to manipulate directories, including the following functions?
dirname() Returns the directory portion of a path
rewindir() Back the directory pointer back to the start of the list of entries
chdir() Changes the current directory
rmdir() Deletes a directory
Answer
Correct Answer:
dirname() Returns the directory portion of a path chdir() Changes the current directory rmdir() Deletes a directory
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213.
PHP has functions to set, move, and reset this iterator and the iterator functions are?
each( ) Returns the element to the last element in the array
current( ) Returns the element currently pointed at by the iterator
reset( ) Moves the iterator to the first element in the array and returns it
end( ) Moves the iterator to the next element in the array and returns it
key( ) Returns the key of the current element
Answer
Correct Answer:
current( ) Returns the element currently pointed at by the iterator reset( ) Moves the iterator to the first element in the array and returns it key( ) Returns the key of the current element
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214.
The ereg( ) function takes a pattern, a ____ , and an optional array?
constructer
class
variable
boolean
string
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215.
How to approach static methods and properties, please choose correct answer? class Utilis { static public $numstudent = 0;
Utilis::$numstudent = 3;
echo $Utilis -> set(numstudent);
echo $Utilis -> get(numstudent);
echo Utilis::$numstudent;
echo $Utilis -> numstudent;
Answer
Correct Answer:
Utilis::$numstudent = 3; echo Utilis::$numstudent;
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216.
There are following categories of functions for POSIX-style regular expressions?
matching
replacing
splitting
None of the above
Answer
Correct Answer:
matching replacing splitting
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217.
Which of the following code syntax is True about declaring a class definition?
class Myclassname [ extends baseclass ] { [ var $property [ = value ]; ... ] [ function functionname (args) { // code } ... ] }
class Myclassname ( extends baseclass ) { var $property = value ; ... [ function functionname (args) { // code } ... ] }
class Myclassname { (extends baseclass ) { var $property ( = value ); ... function functionname (args) { // code } ... ] }
class Myclassname [ extends baseclass ] { var $property = value ; ... ] } function functionname (args) { // code )} ... ] }
Answer
Correct Answer:
class Myclassname [ extends baseclass ] { [ var $property [ = value ]; ... ] [ function functionname (args) { // code } ... ] }
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218.
The following functions can be used from Exception class?
getLine()
getCodeByName()
getMessage()
getid()
getTraceAsString()
Answer
Correct Answer:
getLine() getMessage() getTraceAsString()
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219.
To set PDO to raise exceptions, Database errors occur you can use the PDO::SetAttribute method to set your PDO object’s error mode as follows?
$conn = new PDO( $dsn, $username, $password ); $conn->setAttribute( PDOATTR_ERRMODE, PDOERRMODE_EXCEPTION );
$conn = new PDO( $dsn, $username, $password ); $conn.setAttribute( PDO:ATTR_ERRMODE, PDO:ERRMODE_EXCEPTION );
$conn = new PDO( $dsn, $username, $password ); $conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
None of the above
Answer
Correct Answer:
$conn = new PDO( $dsn, $username, $password ); $conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
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220.
Which of the following methods perform aggregate functions on all items in an array?
array_sum
array_uniq
array_rand
array_product
array_pro
Answer
Correct Answer:
array_sum
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221.
PHP currently offers following functions for searching strings using POSIX-style regular expressions?
sql_regcase()
eragi_replace()
ereg_replace()
spliti()
erag()
Answer
Correct Answer:
sql_regcase() ereg_replace() spliti()
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222.
PHP represents regular expressions as strings there are following different set of functions?
preg_split
explode
preg_patern
str_replace
preg_filter
Answer
Correct Answer:
preg_split
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223.
PHP Errors, There are following type levels of error severity to start with?
Errors (E_ERROR)
Stri dynamic problems (E_STRI)
Notices (E_NOTICE)
Warnings (E_WARNING)
All of the above
Answer
Correct Answer:
Errors (E_ERROR) Notices (E_NOTICE) Warnings (E_WARNING)
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224.
Which of the following is not supported in PHP?
Type Hinting
Reflection
Magic Methods
Multiple Inheritance
Object Cloning
Answer
Correct Answer:
Multiple Inheritance
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225.
Which of the following syntax is not correct to embed PHP?
?php PHP CODE HERE ?>
<? PHP CODE HERE ?>
<php PHP CODE HERE >
Answer
Correct Answer:
<php PHP CODE HERE >
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226.
What is the output of the following code run using PHP 5.6.0 or higher? const ONE = 1; class foo { const TWO = ONE * 2; const THREE = ONE + self::TWO; const SENTENCE = 'The value of THREE is '.self::THREE; } echo foo::SENTENCE . "\n";
The value of THREE is 1
The value of THREE is 12
The value of THREE is 3
The value of THREE is 13
Answer
Correct Answer:
The value of THREE is 3
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227.
Which of the following will return true keeping in view the following code? function validateDate($date, $format = 'Y-m-d H:i:s') { $d = DateTime::createFromFormat($format, $date); return $d && $d->format($format) == $date; }
validateDate('2012-02-30 12:12:12')
validateDate('30/02/2012', 'd/m/Y')
validateDate('14:77', 'H:i')
validateDate('2012-02-28 12:12:12')
Answer
Correct Answer:
validateDate('2012-02-28 12:12:12')
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228.
Which function is used to get the number of arguments passed to the function?
func_num_args()
$_GET
func_get_args_num()
func_get_arg()
Answer
Correct Answer:
func_num_args()
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229.
Which operator is used to check if two values are equal and of same data type?
=
==
===
!=
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230.
Which of the following type of variables are instances of programmer-defined classes?
Strings
Arrays
Objects
Resources
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231.
What is the output of the following code? session_start(); $_SESSION['logged_in'] = true; $_SESSION['name'] = 'Jane'; $_SESSION['level'] = 4; echo session_encode();
logged_in|b:1;name|s:4:"Jane";level|i:4;
Array ( [logged_in] => 1 [name] => Jane [level] => 4
{"logged_in":true,"name":"Jane","level":4}
You cannot encode session variables.
Answer
Correct Answer:
logged_in|b:1;name|s:4:"Jane";level|i:4;
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232.
How many elements are in the array created by the following line of code: $array = array (true => '5', 1 => '6');
1
2
3
4
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233.
What is the output of the following code? $a = "b"; $b = 22; echo $$a + 40;
22
40
62
0
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234.
What is the output of the following code? try { $a = 10/0; echo $a; } catch (Exception $e) { echo 'You cannot divide by ZERO!!'; }
You cannot divide by ZERO!!
10
Warning: Division by zero
0
Answer
Correct Answer:
Warning: Division by zero
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235.
Which of the following is the correct keyword in SQL?
SELECT
Select
select
SeLeCt
All of the above
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236.
How do you start a session in PHP?
start_session()
session_start()
initiate_session()
session_initiate()
Answer
Correct Answer:
session_start()
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237.
Which of the following is not related with respect to calculating the size of a file?
filesize()
cURL
file_exists()
stat()
Answer
Correct Answer:
file_exists()
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238. Which function can convert a comma separated string into an array using a single call?
strtoarray
explode
extract
substr
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239.
What will be the output of the following code? <?php class FormBuilder { private $elements = array(); public function label($text) { $this->elements[] = "<label>$text</label>"; return $this; } public function input($type, $name, $value = '') { $this->elements[] = "<input type=\"$type\" name=\"$name\" value=\"$value\" />"; return $this; } public function textarea($name, $value = '') { $this->elements[] = "<textarea name=\"$name\">$value</textarea>"; return $this; } public function __toString() { return join("\n", $this->elements); } } $b = new FormBuilder(); echo $b->label('Name')->input('text', 'name')->textarea('message', 'My message');
label>Name/label>
<label>Name</label> <input type="text" name="name"/> <textarea name="message">My message</textarea>
<label>Name</label> <input type="text" name="name" value="" /> <textarea name="message">My message</textarea>
Fatar error on the last line since calling of class methods can not be nested.
Answer
Correct Answer:
<label>Name</label> <input type="text" name="name" value="" /> <textarea name="message">My message</textarea>
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240.
Which of the following function of String object splits a String object into an array of strings by separating the string into substrings?
slice()
split()
replace()
search()
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241.
Which of the following is not a JavaScript datatype?
Function
Boolean
Number
String
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242.
What will the the output of below code? function testfoo() { return { test: 1 }; } alert(typeof testfoo());
function
object
variable
undefined
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243.
Polymorphism is also known as:
Switch
Overact
Encapsulation
Class switching
Answer
Correct Answer:
Class switching
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244.
Which of the following is false with respect to Bridge pattern in PHP?
Bridge is designed up-front to let the abstraction and the implementation vary independently.
Decouple an abstraction from its implementation so that the two can vary independently.
Publish interface in an inheritance hierarchy, and bury implementation in its own inheritance hierarchy.
Use bridge when you do not want to share an implementation among multiple objects.
Answer
Correct Answer:
Use bridge when you do not want to share an implementation among multiple objects.
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245.
Which of the following cannot be used to include a file?
include()
include_once()
require()
insert()
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246.
Which function lets you check that you have reached the end of file while reading the file in PHP?
feof()
f_eof()
end_of_file()
eof()
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247.
Which function is used to read a file removing the HTML and PHP tags in it?
fgetss()
fgets()
fopen()
file_strip_tags()
Answer
Correct Answer:
file_strip_tags()
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248.
Which of the following function is used to get length of a string?
size()
strlen()
length()
None of the above
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249.
Which function is used to delete a file from the server using PHP?
unlink()
unset()
delete()
remove_file()
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250.
mysqli::autocommit does not work with which of the following table types?
InnoDB
BDB
NDB Cluster
MyISAM
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251.
How do you remove the X-Powered-By header?
Setting expose_php = Off in php.ini
Using xss_clean()
Using header()
Setting disable_classes = On in php.ini
Answer
Correct Answer:
Setting expose_php = Off in php.ini
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252.
Which of the following is the correct way to add 1 to the $count variable?
++count;
count++;
$count++;
$count=+1;
Answer
Correct Answer:
$count++;
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253.
How to get client IP address in a PHP script?
$_DOMAIN['REMOTE_ADDR']
$_SERVER['REMOTE_ADDR']
$_SERVER['REMOTE_IP_ADDRESS']
$_ENV
Answer
Correct Answer:
$_SERVER['REMOTE_ADDR']
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254.
Which of the following method of Exception class returns formated string of trace?
getMessage()
getCode()
getTrace()
getTraceAsString()
Answer
Correct Answer:
getTraceAsString()
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255.
What is the output of the following code? $foo = 400; $bar = 10; echo $foo . "+" . $bar;
400+10
410
40010
Error
Nothing will display
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256.
Select the correct statement about setcookie() function:
The setcookie() function must appear after the </html> tag.
The setcookie() function must appear before the <html> tag.
The setcookie() function may appear anywhere in the code.
There is no such function.
Answer
Correct Answer:
The setcookie() function must appear before the <html> tag.
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257.
What will be the output of the following code? <?php $z = 0.5; { $z = 9; echo "My Daily Earnings : $ $z"; } echo "{$z}"; ?>
My Daily Earnings : $ 10
My Daily Earnings : $ 99
My Daily Earnings : $ 50
My Daily Earnings : $ 9
Answer
Correct Answer:
My Daily Earnings : $ 99
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258.
Which of the following is true with respect to Flyweight design pattern in PHP?
All the methods of the class should be private.
This pattern is used when you need only a small number of instances of same type.
Using this pattern consumes a lot of memory.
instances of a class which are identical are shared in an implementation instead of creating a new instance of that class for every instance.
Answer
Correct Answer:
instances of a class which are identical are shared in an implementation instead of creating a new instance of that class for every instance.
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259.
Which superglobal variable holds information about header, paths and script locations?
$_SERVER
$_GLOBALS
$_SESSION
$_GET
Answer
Correct Answer:
$_GLOBALS
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260.
What does ctype_digit() do?
It counts the number of digits in the given string.
It returns TRUE if the string contains only numeric characters.
It returns TRUE if the string contains non-numeric characters.
It returns the numeric characters in a string.
Answer
Correct Answer:
It returns TRUE if the string contains only numeric characters.
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261.
How do you throw an exception in PHP?
throw new Exception(message);
throw Exception(message);
throws new Exception(message);
None of these
Answer
Correct Answer:
throw new Exception(message);
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262.
Which of the following is used to execute a prepared statement in PHP-MySQL?
mysqli_stmt_execute()
mysqli_execute_stmt()
mysqli_query()
mysqli_stmt_bind_param()
Answer
Correct Answer:
mysqli_stmt_bind_param()
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263.
What will be the output of executing the following code? <?php class Foo { private function printName($name) { print_r($name); } } $a = new Foo(); $a->printName('James'); ?>
James
Fatal error: Call to private method Foo::printName() from context ...
Notice: Undefined variable: a
Fatal error: Call to undefined method Foo::printName()
Answer
Correct Answer:
Fatal error: Call to private method Foo::printName() from context ...
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264.
Which of these are not a valid data type?
String
Bool
Char
Integer
UInt
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265.
How do you create a connection to MySQL database in PHP?
mysqliconnect()
mysqli-connect()
mysqli_connect()
sql_connect()
Answer
Correct Answer:
mysqli_connect()
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266.
Which of the following is a valid syntax to create a function?
Function = demoFunction()
function:demoFunction()
function demoFunction()
function create demoFunction()
Answer
Correct Answer:
function demoFunction()
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267.
What is the value of "n1" and "n2" after executing the following code? var str = "Finding foo in Foo and Bar"; var n1 = str.search("Foo"); var n2 = str.search(/Foo/i);
n1 = 15, n2 = 15
n1 = 15, n2 = 8
n1 = 8, n2 = 8
Answer
Correct Answer:
n1 = 15, n2 = 8
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268.
What will be the output of following code? var x = 1; { var x = 2; } alert(x);
1
2
undefined
code will raise an exception
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269.
What will be the output of the following code? $time = strtotime ('2016-01-01'); echo date ('d-m-y H:i:s:u', $time);
16-01-01 00:00:00:00
01-01-16 00:00:00:000000
01-01-2016 00:00:00:000000
01-01-16 00:00:00:00
Answer
Correct Answer:
01-01-16 00:00:00:000000
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270.
What is the correct ways to create an arrays in PHP higher then version 5.3 Note: there may be more then one correct answer
$phones = array("Samsung", "Iphone", "HTC");
$phones = "Samsung", "Iphone", "HTC";
$phones = ["Samsung", "Iphone", "HTC"];
$phones = "Samsung" . "Iphone" . "HTC";
Answer
Correct Answer:
$phones = array("Samsung", "Iphone", "HTC");
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271.
Which of the following are valid in PHP?
$_23
${"foobar"}
&$foo
$23_foobar
$foobar
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272.
What is the output of the following code? $foo = 10; $bar = '10'; if ($foo === $bar){ echo 'I ran'; }
I ran
Nothing is output
TRUE
Error
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273.
Which function in PHP can be used to check if a variable is an array or not?
this_array()
is_array()
do_array()
in_array()
Answer
Correct Answer:
is_array()
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274.
How do you set a particular time zone to be used by your PHP code?
date_default_timezone_set()
set_date_timezone_default()
default_date_timezone_set()
date_timezone_set()
Answer
Correct Answer:
date_default_timezone_set()
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275.
What is the correct way to add 1 to the $a variable?
$a=+1
$a++
++$a
a++
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276.
What does the following statement do with respect to the errors that will get displayed? error_reporting(E_ALL & ~E_NOTICE);
Report all errors
Report only NOTICE messages
Report all errors other than NOTICE messages
Answer
Correct Answer:
Report all errors other than NOTICE messages
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277.
What is the output of the following code? $sentence = "ThiS iS a SenTEnCe"; echo ucwords($sentence);
This Is A Sentence
THIS IS A SENTENCE
this is a sentence
ThiS IS A SenTEnCe
Answer
Correct Answer:
ThiS IS A SenTEnCe
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278.
Which of the following is the correct way to create a function in PHP?
new_function myFunction()
function myFunction()
create myFunction()
new myFunction()
Answer
Correct Answer:
function myFunction()
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279.
Which of the following is the correct way to create an array in PHP?
$animals = array(Cat, Dog, Horse);
$animals = array("Cat", "Dog", "Horse");
$animals = array["Cat", "Dog", "Horse"];
$animals = "Cat", "Dog", "Horse";
Answer
Correct Answer:
$animals = array("Cat", "Dog", "Horse");
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280.
How to get information from a form that is submitted using the "get" method?
Request.Form;
$_GET();
Request.Get;
$_GET[];
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281.
What of the listed below are correct magic methods?
__construct(), __destruct(), __put(), __post()
__construct(), __destruct(), __get(), __set()
__init(), __final(), __get(), __set()
__init(), __final(), __put(), __post()
Answer
Correct Answer:
__construct(), __destruct(), __get(), __set()
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282.
Which of the following magic constant of PHP returns function name?
__LINE__
__FILE__
__FUNCTION__
__CLASS__
Answer
Correct Answer:
__FUNCTION__
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283.
Which of the following has object oriented and procedural support as well as supports prepared statements?
PDO
MYSQLi
MYSQL
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284.
Which of the following is not correct with respect to Authentication using CURL?
CURL can be used to authenticate a user.
CURL can be used to send form data using both GET and POST methods.
CURL can not be used to authenticate a user as it can only be used to access and read webpage data.
CURL can be used for HTTP basic Authentication.
Answer
Correct Answer:
CURL can not be used to authenticate a user as it can only be used to access and read webpage data.
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285.
Which Content Type header need to be set to send an HTML mail in PHP?
‘Content-type: html; charset=iso-8859-1’ . “\r\n”;
‘MIME-Version: 1.0’ . “\r\n”
‘Content-type: text/html; charset=iso-8859-1’ . “\r\n”
‘Content-type: application/html; charset=iso-8859-1’ . “\r\n”’
Answer
Correct Answer:
‘Content-type: text/html; charset=iso-8859-1’ . “\r\n”
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286.
What is the difference between “echo” and “print” in PHP?
“echo“ can take multiple parameters, while “print” can only take a single parameter
“Print” has a return value of 1 so it can be used in expressions whereas “echo” has a void return type.
“Print” performs slightly slower than “echo”.
There is no difference between “print” and “echo”.
Answer
Correct Answer:
“echo“ can take multiple parameters, while “print” can only take a single parameter “Print” has a return value of 1 so it can be used in expressions whereas “echo” has a void return type. “Print” performs slightly slower than “echo”.
Note: This question has more than 1 correct answers
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287.
What piece of code would you use to obtain an array of response headers for a given URL, indexed by their respective names?
get_headers($url);
get_header($url);
get_headers($url,1);
Answer
Correct Answer:
get_headers($url,1);
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288.
What super-global should be used to access information about uploaded files via a POST request?
$_SERVER
$_FILES
$_GET
$_ENV
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289. The extent to which proximate procedures are related to one another is known as:
Coupling
Balancing
Cohesion
Co-relation
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290.
Which is the correct way to profile a PHP function (without relying on 3rd party libraries and/or PHP extensions)?
$start = microtime(); functionToProfile(); $end = microtime(); $duration = $end - start;
$start = time(); functionToProfile(); $end = time(); $duration = $end - start;
$start = microtime(true); functionToProfile(); $end = microtime(true); $duration = $end - start;
$start = date('U'); functionToProfile(); $end = date('U'); $duration = $end - start;
Answer
Correct Answer:
$start = microtime(); functionToProfile(); $end = microtime(); $duration = $end - start;
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291.
Which of the following statement is correct?
Interfaces can extend more than one interface
Interfaces can extend only one interface
Interfaces can inherit a method from different interfaces
Interfaces can re-declare inherited methods
Answer
Correct Answer:
Interfaces can extend more than one interface
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292.
Which of the following is incorrect about empty()?
empty() checks if a variable is empty.
empty() can check expressions.
empty() can only check variables .
empty() returns false if a variable exists and has a non-empty value.
Answer
Correct Answer:
empty() can check expressions.
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293.
Which is true about the curl_setopt() API?
PHP does not provide such an API.
It sets multiple options for a cURL transfer.
It executes the curl command.
It sets one option for a cURL transfer.
Answer
Correct Answer:
It sets one option for a cURL transfer.
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294.
What is the use of memory_get_peak_usage()?
Returns the available memory on RAM
Returns the peak of memory allocated by PHP
Returns the peak of memory allocated by OS
No such function exist
Answer
Correct Answer:
Returns the peak of memory allocated by PHP
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295.
What is the output of the following code? <?php function y($v) { echo $v; } $w = "y"; $w("z"); $w = "x"; ?>
x
y
z
<error>
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296.
Which of the following is not a valid PHP debugger?
PHPTracer
Zend Debugger
APD
Xdebug
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297.
Suppose after successful login following values are stored in session as per the given code:- session_start(); $_SESSION['logged'] = 1; $_SESSION['id'] = $id; $_SESSION['name'] = $contact_name; $_SESSION['email'] = $email; Now how will you remove the email value from the session?
unset($_SESSION)
unset($_SESSION['email'])
session_destory($_SESSION)
All of the above.
Answer
Correct Answer:
unset($_SESSION['email'])
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298.
What is the use of the CDATA section in XML?
CDATA is used to store the content of an XML node.
CDATA is used to skip invalid characters.
XML does not have any CDATA section.
CDATA is used when PHP is used to update the content of an XML file.
Answer
Correct Answer:
CDATA is used to skip invalid characters.
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299.
Which of the following is a type of array in PHP?
string
compound
callback
scala
struct
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300.
What is the correct way to read the result of a variable dump into a string?
$string = explode($variable);
$string = print_r($variable);
$string = serialize($variable);
$string = var_dump($variable);
Answer
Correct Answer:
$string = var_dump($variable);
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301.
Which is the best way to automatically deploy a PHP website using git push?
It is not possible.
You should have two copies on your server. A bare copy, that you can push/pull from, to which you would push your changes to when you are done. Then you would clone this into your web directory and set up a cronjob to update git pull from your web directory every day or couple of days.
Developing from scratch a custom deployment script to manage all the aspects.
Copy over your git directory to your web server. On your local copy, modify your .git/config file and add your web server as a remote. On the server, replace .git/hooks/post-update with an existing script to process the rest of the workflow. Make the script executable.
Answer
Correct Answer:
Copy over your git directory to your web server. On your local copy, modify your .git/config file and add your web server as a remote. On the server, replace .git/hooks/post-update with an existing script to process the rest of the workflow. Make the script executable.
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302.
What is the output of the following code? <?php $a = 123; $b = "123"; if ($a == $b) echo 'A'; if ($a === $b) echo 'B'; ?>
empty output>
A
B
AB
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303.
Which of the following is the best way to get the index(es) of the highest value(s) in an array?
$newarr=arsort($arr); $max_key=array_shift(array_keys($new_arr));
function max_key($array) { foreach ($array as $key => $val) { if ($val == max($array)) return $key; } }
$maxs = array_keys($array, max($array))
function array_max_key($array) { $max_key = -1; $max_val = -1; foreach ($array as $key => $value) { if ($value > $max_val) { $max_key = $key; $max_val = $value; } } return $max_key; }
Answer
Correct Answer:
$maxs = array_keys($array, max($array))
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304.
Which of the following is false about foreach loop in PHP?
The foreach construct provides an easy way to iterate over arrays.
foreach works only on arrays and objects.
foreach loop can be used with a variable of any type.
foreach does not support the ability to suppress error messages using '@'.
Answer
Correct Answer:
foreach loop can be used with a variable of any type.
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305.
When user clicks on Logout link, the user is redirected to logout.php file and the file has following code? <?php session_unset(); session_destroy(); header("Location: index.php"); ?> What is wrong with the following code?
session_destory() should be called prior to session_unset().
The first line of the file should be session_start() so that session_destroy() will destroy the active session.
PHP will throw a fatal error since the required SESSIONID parameter is not passed in the session_destroy() method.
There is nothing wrong with the code and session will be destroyed and user will be redirected to index.php page.
Answer
Correct Answer:
The first line of the file should be session_start() so that session_destroy() will destroy the active session.
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306.
What will be the output of the following code? <?php $xmlFile = "<root><css><element><csstag><title>background-color</title><value>#FFF</value></csstag><csstag><title>color</title><value>#333</value></csstag><csstag><title>font-family</title><value>Verdana, Geneva, sans-serif</value></csstag></element></css></root>"; $xml = simplexml_load_string($xmlFile); foreach($xml->css as $css) { echo (string) $css->element['id']."{"; foreach($xml->css->element->csstag as $tag) { $temp = $tag->title.": ".$tag->value.";"; echo $temp; } echo "}"; } ?>
syntax error
background-color: #FFF;color: #333;font-family: Verdana, Geneva, sans-serif;
parse error;
{background-color: #FFF;color: #333;font-family: Verdana, Geneva, sans-serif;}
Answer
Correct Answer:
{background-color: #FFF;color: #333;font-family: Verdana, Geneva, sans-serif;}
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307.
What is the output of the following code? <?php echo "<pre>"; $array1 = array( "1"=>"a", "2"=>"b", "3"=>"c" ); $array = array_flip($array1); print_r($array); echo "</pre>"; ?>
Array ( [1] => a [2] => b [3] => c )
Array ( [a] => 1 [b] => 2 [c] => 3 )
Array ( [0] => c [1] => b [2] => a )
Array ( [0] => 1 [1] => 2 [2] => 3 )
Answer
Correct Answer:
Array ( [a] => 1 [b] => 2 [c] => 3 )
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308.
Which of the following options may be a reason for the error - "Call to undefined function curl_init()"?
cURL is not enabled.
curl_init() is not a valid API.
cURL only works on Linux.
All of these.
Answer
Correct Answer:
cURL is not enabled.
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309.
Which of the following is incorrect way to take a PHP variable named $name and reassign it to a javascript variable var name?
script> var name = " ?php echo $name;?>"; /script>
<script> var name =<?php echo $name;?>; </script>
<script> var name = <?php echo json_encode($name);?>; </script>
<script> var name = "<?php echo addslashes($name);?>"; </script>
Answer
Correct Answer:
<script> var name = <?php echo json_encode($name);?>; </script>
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310.
What is a class in PHP?
A class is a blueprint for an object. Anobject encapsulates conceptually related states and responsibility of something in your application, and usually offers a programming interface with which to interact with these. This fosters code reuse and improves maintainability.
PHP is a C derived language for web scripting so it does not have the concept of a class.
A class is an instantiation of an object. It encapsulates conceptually related instance state information and responsibility of something in your application, and usually offers a programming interface with which to interact with these. This fosters code reuse and improves maintainability.
A class is a derived structure form stdObject. It is used to build Form-based Graphical user interface.
Answer
Correct Answer:
A class is a blueprint for an object. Anobject encapsulates conceptually related states and responsibility of something in your application, and usually offers a programming interface with which to interact with these. This fosters code reuse and improves maintainability.
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311.
What is “?” ?
A logical operator
A comparison operator
A ternary operator
A bitwise operator
None of the above
Answer
Correct Answer:
A ternary operator
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312.
Which of the following statement about PHP is incorrect?
It is a server-side scripting language.
A .php file may contains text, html tags of scripts.
It can run on windows and Linux systems only.
It is compatible with most of the common servers used today.
Answer
Correct Answer:
It can run on windows and Linux systems only.
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313.
Why does the PHP function "require_once" work slower than "require"?
The system keeps a log of what has already been required in "require_once".
"require_once" uses more memory than "require".
"require_once" has to handle more exceptions than "require".
There is no difference in performance.
Answer
Correct Answer:
The system keeps a log of what has already been required in "require_once".
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314.
Which of the following printing construct/function accepts multiple parameters?
echo
print
printf
All of these
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315.
Which of the following is not true regarding XForms?
PHP provides support for XForms.
It can be used on PDF documents.
The data is sent in XML format.
The action and method parameters are defined in the body.
Answer
Correct Answer:
The action and method parameters are defined in the body.
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316.
What would be the output of the following code snippet?
a b c d e f g h i j k l m n o p q r s t u v w x y z
a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex... on to yz
aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex... on to yz
abcdefghijklmnopqrstuvwxyz
Answer
Correct Answer:
aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex... on to yz
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317.
What is the output of the following code?
1
2
3
4
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318.
Which of the following will return the complete URL of the requested PHP page?
apache_getenv("HTTP_HOST")
$_SERVER['HTTP_HOST']
$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
$_SERVER['REQUEST_URI'];
Answer
Correct Answer:
$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
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319.
Is the following code valid? <? $a = 5; if ($a == 5): echo "Hello"; echo "1"; else: echo "Not hello"; echo "2"; endif; ?>
Yes
No
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320.
Which of the following will not return an array containing all normal Latin alphabet characters (A-Z)?
range('A', 'Z');
range('a', 'z');
range(chr(65),chr(90))
range(65,90)
Answer
Correct Answer:
range(65,90)
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321.
What is the initial value of a variable?
"0"
NULL
Any value
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322.
What is meant by Synchronous Server Calls within PHP's cURL features?
Performing server calls simultaneously.
Performing server calls within batches.
Performing server calls one after each other.
Performing server calls in parallel.
Answer
Correct Answer:
Performing server calls in parallel.
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323.
What is the fastest way to insert an item $item into the specified position $position of the array $array?
array_insert()
array_splice()
array_merge() and array_slice()
PHP does not have any built-in function that can do this: the source array will have to be copied, and $item inserted in to the required position: $n = 0; foreach ($array as $key => $val) { if ($n == $position) { $target[] = $item; } ++$n; $target[$key] = $val; }
Answer
Correct Answer:
array_merge() and array_slice()
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324.
How do you erase an element from an array, with numeric keys, to maintain a normalized integer series?
$x[0]=null;
$x = array_values($x); unset($x[0]);
unset($x[0]); $x = array_values($x);
delete $x[0]
Answer
Correct Answer:
unset($x[0]); $x = array_values($x);
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325.
Which function is used to destroy a variable or object?
destroy()
clear()
unset()
reset()
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326.
A file needs to be opened in a PHP application. Additionally, the application has to issue a warning and continue execution, in case the file is not found. The ideal function to use is:
include()
require()
nowarn()
getFile(false)
Answer
Correct Answer:
include()
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327.
What is the output of the following code?
<?php
echo (2) . (3 * (print 3));
?>
233
29
329
323
Syntax error
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328.
What will be the output of the following code?
<?php
$str="Hello";
$test="lo";
echo substr_compare($str, $test, -strlen($test), strlen($test)) === 0;
?>
FALSE
Syntax error
0
1
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329.
What will be the output of the following code?
<?php
</script>
?>
Parse Error
Fatal Error
</script>
?>
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330.
Which of the following is not related to debugging in PHP?
watch
PDO
breakpoints
call stack
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331.
What will be the output of the following code?
<?php
$numbers=array();
$numbers[1] = 1;
$numbers[2] = 2;
$numbers[3] = 3;
$numbers[4] = 4;
$key= array_search(3,$numbers);
unset($numbers[$key]);
print_r($numbers);
?>
Array ( [1] => 1 [2] => 2 [3] => 4 )
Array ( [1] => 1 [2] => 2 [4] => 4 )
Array ( [0] => 1 [1] => 2 [2] => 4 )
Array ( [0] => 1 [2] => 2 [3] => 4 )
Answer
Correct Answer:
Array ( [1] => 1 [2] => 2 [4] => 4 )
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332.
Which of the following features are supported in PHP5?
Multiple Inheritance
Embedded Database with SQLite
Exceptions and Iterators
Interoperable XML Tools
Answer
Correct Answer:
Embedded Database with SQLite
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333.
What is the output of the following code?
<?php
echo 0x500;
?>
500
0x500
0500
1280
320
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334.
Which of the following statements is incorrect?
In a try catch block, the catch block should only appear after the try block.
A try block can have more than one catch block.
A try block can have only one catch block.
When an exception occurs in a try block, control goes to the catch block or the following finally block.
Answer
Correct Answer:
A try block can have only one catch block.
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335.
Which of the following is the correct way to convert a variable from a string to an integer?
$number_variable = int_val $string_variable;
$number_variable = (int_val)$string_variable;
$number_variable = int($string_variable);
$number_variable = (int)$string_variable;
Answer
Correct Answer:
$number_variable = (int)$string_variable;
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336.
Which one of these should be avoided with respect to the database username and password in PHP?
Always store database username and password in a PHP file.
Store the database username and password in a configuration file outside the webroot.
The username used for connecting to the database should only have limited access to the database.
Avoid a single database user having access to multiple databases if not required.
Answer
Correct Answer:
Always store database username and password in a PHP file.
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337.
Which of the following is incorrect with respect to separating PHP code and HTML?
Use MVC design.
As PHP is a scripting language, so HTML and PHP cannot be separated.
Use any PHP template engine e.g: smarty to keep the view from business logic.
Create one script containing your (PHP) logic outputting XML and one script produce the XSL to translate the XML to your views.
Answer
Correct Answer:
Create one script containing your (PHP) logic outputting XML and one script produce the XSL to translate the XML to your views.
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338.
What is the correct PHP command for setting a MySQL connection character set to UTF8?
mysqli_client_encoding($link, "utf8");
mysqli_character_set_name($link, "utf8");
mysqli_set_charset($link, "utf8");
mysql_character_set_name($link, "utf8");
Answer
Correct Answer:
mysqli_set_charset($link, "utf8");
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339.
What will be the output of the following code?
Nothing will be printed on-screen.
Foo
Syntax error on line $this->name=$name
Fatal error on line $this->name=$name
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340.
Which of the following is true with respect to database tables in PHP?
New database tables cannot be created using PHP.
The structure of an existing table cannot be altered using PHP.
An existing table cannot be dropped using PHP.
New database tables can be created using PHP, provided that the user connecting to the database has enough privileges.
Answer
Correct Answer:
New database tables can be created using PHP, provided that the user connecting to the database has enough privileges.
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341.
Why is it not recommended to use $_REQUEST when handling form submissions in PHP?
It's difficult to determine whether it is a $_POST or $_GET request.
$_REQUEST is deprecated.
$_REQUEST includes $_COOKIE by default, and parameters from $_COOKIE with the same name may be overriden with parameters from $_GET or $_POST.
$_REQUEST does not handle HTTP rquests, it handles database requests.
Answer
Correct Answer:
$_REQUEST includes $_COOKIE by default, and parameters from $_COOKIE with the same name may be overriden with parameters from $_GET or $_POST.
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342.
How would you guarantee a reliable expiration of a PHP session after 30 minutes?
Use session.gc_maxlifetime which specifies the number of seconds after which data will be seen as 'garbage' and cleaned up. Garbage collection occurs during session start.
Use session.cookie_lifetime which specifies the lifetime of the cookie in seconds, which is then sent to the browser.
Session timeout management should be implemented manually.
All PHP sessions end after 30 minutes.
Answer
Correct Answer:
Use session.gc_maxlifetime which specifies the number of seconds after which data will be seen as 'garbage' and cleaned up. Garbage collection occurs during session start.
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343.
What is a salted MD5 hashed password?
It is MD5 representation of a password.
It is doubly MD5 representation of a password.
It is MD5 representation of a random string concatenated with MD5 of a password.
There is no such thing as salted MD5.
Answer
Correct Answer:
It is MD5 representation of a random string concatenated with MD5 of a password.
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344.
Which of the following is incorrect with respect to json_encode and serialize()?
Both methods are same and produces json only.
JSON converts UTF-8 characters to unicode escape sequences. serialize() does not.
json_encode() generates the JSON representation of a value while serialize() generates a storable representation of a value.
Any data encoded with json_encode() function can be used outside a PHP application whereas data generated with serialize() can only be used in a PHP application.
Answer
Correct Answer:
Any data encoded with json_encode() function can be used outside a PHP application whereas data generated with serialize() can only be used in a PHP application.
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345.
Which of the following is the correct way to create two independent connections to MySQL in PHP?
$dbh1 = mysql_connect($hostname, $username, $password);
$dbh2 = mysql_connect($hostname, $username, $password, true);
$dbh1 = mysql_connect($hostname, $username, $password, 1);
$dbh2 = mysql_connect($hostname, $username, $password, 2);
$dbh1 = mysql_connect($hostname, $username, $password, +1);
$dbh2 = mysql_connect($hostname, $username, $password, -1);
$dbh1 = mysql_connect($hostname, $username, $password,'primary');
$dbh2 = mysql_connect($hostname, $username, $password, 'secondary');
Answer
Correct Answer:
$dbh1 = mysql_connect($hostname, $username, $password);
$dbh2 = mysql_connect($hostname, $username, $password, true);
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346.
What is the difference between $a == $b and $a === $b in PHP?
There is no difference.
'==' checks whether $a and $b have the same string representation, '===' checks whether the values are of the same type and $a is equal to $b.
'==' checks whether $a and $b have the same string representation, '===' checks whether $a and $b are equal after type juggling.
'==' checks whether $a and $b are equal after type juggling, '===' checks whether $a and $b are equal and are of the same type.
Answer
Correct Answer:
'==' checks whether $a and $b are equal after type juggling, '===' checks whether $a and $b are equal and are of the same type.
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347.
What will be the output of the following code?
0
1
10000
400000
800000
Syntax error
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348.
Which of the following methods is used to check if an array is associative or numeric?
is_Assoc().
isAssoc()
is_assoc()
None of the above.
Answer
Correct Answer:
isAssoc()
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349.
Which of the following would trigger the browser's "Save As" prompt?
header('file.txt');
header('location: file.txt');
header('Content-type: application/txt');
header('location: file.txt');
echo "file contents";
header('Content-type: application/txt');
header('Content-Disposition: attachment; filename="file.txt"');
echo "file contents";
Answer
Correct Answer:
header('Content-type: application/txt');
header('Content-Disposition: attachment; filename="file.txt"');
echo "file contents";
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350.
Which method is used to capture the whole screen in PHP?
imagegrabscreen();
imagegrabwindow()
imagealphablending()
getimagesizefromstring()
Answer
Correct Answer:
imagegrabscreen();
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351.
What is the best method for sanitizing user input with PHP?
PHP has a specific feature named magic-quotes to sanitize everything.
In general there is no need to sanitize input, apart from specific situations.
Whenever you embed a string within foreign code, you must escape it, according to the rules of that language. E.g. for MySQL, you will use mysql_real_escape_string, for HTML you will escape it with htmlspecialchars.
PHP exposes Regex functionalities to parse and sanitize everything.
Answer
Correct Answer:
Whenever you embed a string within foreign code, you must escape it, according to the rules of that language. E.g. for MySQL, you will use mysql_real_escape_string, for HTML you will escape it with htmlspecialchars.
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352.
What is the use of the @ symbol in front of a variable?
It sets the type of that variable to a string.
It sets the type of that variable to an array.
It hides any error messages coming from the expression.
It has no use and would return an error.
Answer
Correct Answer:
It hides any error messages coming from the expression.
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353.
What is the output of the following code?
1
2
3
4
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354.
The built-in function to get the number of parameters passed is:
arg_num()
func_args_count()
func_num_args()
None of these
Answer
Correct Answer:
func_num_args()
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355.
In PHP5, what is the difference between using self and $this, and when is each appropriate?
$this is for use in static member functions to allow access to static member variables. Use self in non-static member functions, and as a reference to the instance of the class on which the member function was called.
self is for use in static member functions to allow access to static member variables. $this is used in non-static member functions, and is a reference to the instance of the class on which the member function was called, but also allows access to static member functions.
The self keyword does not exist.
There is no difference between the two keywords; it is simply syntactic sugar.
Answer
Correct Answer:
self is for use in static member functions to allow access to static member variables. $this is used in non-static member functions, and is a reference to the instance of the class on which the member function was called, but also allows access to static member functions.
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356.
What is the output of the following code?
<?php
function abc()
{
return __FUNCTION__;
}
function xyz()
{
return abc();
}
echo xyz();
?>
abc
__FUNCTION__
xyz
empty output
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357.
Which of the following is not a valid Xdebug configuration setting?
xdebug.var_display_max_depth
xdebug.var_display_max_children
xdebug.var_display_max_data
xdebug.trace
Answer
Correct Answer:
xdebug.trace
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358.
Which of the following will read an object into an array variable?
$array_variable = get_object_vars($object);
$array_variable = (array)$object;
$array_variable = array $object;
$array_variable = get_object_vars $object;
Answer
Correct Answer:
$array_variable = get_object_vars($object);
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359.
Which code snippet outputs a random string?
<?php Function RandomString() { $characters = ’0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ’; $randstring = ''; for ($i = 0; $i < 10; $i++) { $randstring = $characters[rand(0, strlen($characters))]; } return $randstring; } RandomString(); echo $randstring; ?>
function generateRandomString($length = 10) { $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } return $randomString; }
function generateRandomString($length = 15) { return substr(sha1(rand()), 0, 0); }
function RandomString($length) { $keys = array_merge(range(0,9), range('a', 'z')); for($i=0; $i < $length; $i++) { $key = $keys[array_rand($keys)]; } return $key; }
Answer
Correct Answer:
function generateRandomString($length = 10) { $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } return $randomString; }
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360.
What is wrong with the following code?curl_setopt($ch, CURLOPT_URL,“http://www.example.com/”);curl_setopt($ch, CURLOPT_HEADER, 0);curl_exec($ch);curl_close($ch);?>
There is nothing wrong with the code.
The cURL resource $ch has not been created using the curl_init() method.
The $ch variable needs to be initialized as $ch=null;.
The code will cause a parse error.
Answer
Correct Answer:
The cURL resource $ch has not been created using the curl_init() method.
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361.
What is the output of the following code?
<?php
function
vec_add (&$a, $b)
{
$a['x'] += $b['x'];
$a['y'] += $b['y'];
$a['z'] += $b['z'];
}
$a = array (x => 3, y => 2, z => 5);
$b = array (x => 9, y => 3, z => -7);
vec_add (&$a, $b);
print_r ($a);
?>
Array ( [x] => 9 [y] => 3 [z] => -7 )
Array ( [x] => 3 [y] => 2 [z] => 5 )
Array ( [x] => 12 [y] => 5 [z] => -2 )
Error
None of the above
Answer
Correct Answer:
Array ( [x] => 12 [y] => 5 [z] => -2 )
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362.
What is the difference between the float and the double type in PHP?
Float is 32-bit while double is 64-bit.
Float represents only rational numbers.
Float and double are aliases for the same thing.
None of these.
Answer
Correct Answer:
Float and double are aliases for the same thing.
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363.
Which of the following is the correct way to check if a session has already been started?
if ($_SERVER["session_id"]) echo 'session started';
if (session_id()) echo 'session started';
if ($_SESSION["session_id"]) echo 'session started';
if ($GLOBALS["session_id"]) echo 'session started';
Answer
Correct Answer:
if (session_id()) echo 'session started';
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364.
What will be the output of the following code?
<?php
echo 30 * 5 . 7;
?>
150 . 7
1507
150.7
Integers can't be concatenated.
An error will be thrown.
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365.
What will be the output of the following code?
<?
$a = (1 << 0);
$b = (1 << 1);
echo ($b | $a) << 2 ;
?>
1
2
3
4
8
12
Syntax error
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366.
What will be the output of the following code?
<?
$foo = 5 + "10 things";
print $foo;
?>
510 things
5 10 things
15 things
15
None of these
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367.
What is the output of the following code?
echo '1'.print(2) + 3;
123
321
511
155
432
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368.
Which of the following are valid PHP data types?
resource
null
boolean
string
All of these
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369.
Which of the following is true regarding the str_replace() function in PHP?
It requires a minimum of 2 parameters.
The first argument is the string or array being searched and replaced.
The second argument is the the replacement value that replaces found search values.
It will replace only the first matched string.
Answer
Correct Answer:
It requires a minimum of 2 parameters.
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370.
Which of the following is the right MIME to use as a Content Type for JSON data?
text/x-json
text/javascript
application/json
application/x-javascript
Answer
Correct Answer:
application/json
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371.
Which of the following will not give the correct date and time in PHP?
date("Y-m-d H:i:s")
date("y-m-d H:i:s")
date("f, j Y H:i:s")
date("F, j Y H:i:s")
Answer
Correct Answer:
date("F, j Y H:i:s")
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372.
How should a variable be declared in a function, if the value has to be retained over multiple calls?
local
global
static
None of these
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373.
What is the correct way to read-in multiple values from an array?
$x,$y,$z = array(7,8,9);
($x,$y,$z) = array(7,8,9);
array($x,$y,$z) = array(7,8,9);
list($x,$y,$z) = array(7,8,9);
Answer
Correct Answer:
list($x,$y,$z) = array(7,8,9);
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374.
Which of the following is not a valid cURL parameter in PHP?
CURLOPT_RETURNTRANSFER
CURLOPT_GET
CURLOPT_POST
CURLOPT_POSTFIELDS
Answer
Correct Answer:
CURLOPT_GET
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375.
Which of the following is a correct declaration?
static $varb = array(1,'val',3);
static $varb = 1+(2*90);
static $varb = sqrt(81);
static $varb = new Object;
Answer
Correct Answer:
static $varb = array(1,'val',3);
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376.
Which of the following is a ternary operator?
&
=
:?
?:
+=
&&
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377.
Which statement will return true?
is_numeric ("200")
is_numeric ("20,0")
is_numeric ("$200")
is_numeric (".25e4")
None
Answer
Correct Answer:
is_numeric ("200")
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378.
Which function is used to calculate the amount of memory allocated to a PHP script?
emalloc()
get_total_memory_usage()
get_memory_usage()
memory_get_usage()
Answer
Correct Answer:
memory_get_usage()
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379.
Consider the following statements: I : while (expr) statement II: while (expr): statement ... endwhile; Which of the following is true, in the context of the given statements?
I is correct and II is wrong.
I is wrong and II is correct.
Both I and II are wrong.
Both I and II are correct.
Answer
Correct Answer:
Both I and II are correct.
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380.
What is the correct use of the constant, PHP_EOL?
For displaying a new line within an HTML document.
For writing a new line that is cross-platform compatible.
As an 'End Of Line' character for only DOS systems.
As an 'End Of Line' character for only UNIX systems.
Answer
Correct Answer:
For writing a new line that is cross-platform compatible.
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381.
Which is the best approach to parse HTML and extract structured information from it?
Use an existing LibXML based library like DOM or phpQuery.
String searching and extraction.
Use an XML parser (as simpleXML) and XPath queries if available.
Use specific regular expressions.
Answer
Correct Answer:
Use an XML parser (as simpleXML) and XPath queries if available.
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382.
Which of the following is the best way to convert one date format into another; portable for all PHP versions?
$myDateTime = DateTime::createFromFormat('Y-m-d', $dateString); $newDateString = $myDateTime->format('m/d/Y');
newDateString = $myDateTime->format('m/d/Y');
2. $old_date = date('l, F d y h:i:s'); $old_date_timestamp = strtotime($old_date); $new_date = date('Y-m-d H:i:s', $old_date_timestamp);
implode('-', array_reverse(explode('-', $date)));
$old_date = date('y-m-d-h-i-s'); preg_match_all('/(\.+)-(\d+)-(\w+)-(\d+)-(\w+)-(\w+)/', $old_date, $out); $out = $out[0]; $time = mktime($out[4], $out[5], $out[6], $out[2], $out[3], $out[1]); $new_date = date('Y-m-d H:i:s', $time);
Answer
Correct Answer:
$myDateTime = DateTime::createFromFormat('Y-m-d', $dateString); $newDateString = $myDateTime->format('m/d/Y');
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383.
Which of the following statements is incorrect, with regards to inheritance in PHP?
A class can only have a single parent, i.e. it cannot extend more than one class.
A class can both extend another class as well as implement an interface.
A class can implement more than one interface.
A class can extend more than one class.
Answer
Correct Answer:
A class can extend more than one class.
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384.
Is the ||= operator present in PHP?
yes
no
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385.
With what encoding does chr() work?
ASCII
UTF-8
UTF-16
Implementation dependent
None of these
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386.
Which of the following will return the extension of a file name?
pathinfo($filepath,PATHINFO_DIRNAME).
pathinfo($filepath,PATHINFO_BASENAME).
pathinfo($filepath,PATHINFO_EXTENSION).
pathinfo($filepath,PATHINFO_FILENAME).
Answer
Correct Answer:
pathinfo($filepath,PATHINFO_EXTENSION).
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387.
Which of the following code snippets has the most appropriate headers to force the browser to download a CSV file?
header("Content-type: text/csv");
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");
header('Content-Type: application/download');
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");
header('Content-Type: application/csv');
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");
header('Content-Type: application/octet-stream');
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");
Answer
Correct Answer:
header("Content-type: text/csv");
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");
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388.
With regards to the "static" keyword in PHP, which of the following statements is false?
The $this variable can be used inside any static method.
Static properties may only be initialized using a literal or a constant.
A property declared as static can not be accessed with an instantiated class object.
A static variable or method can be accessed without requiring instantiation of the class.
Answer
Correct Answer:
The $this variable can be used inside any static method.
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389.
Which of the following environment variables is used to fetch the IP address of the user in a PHP application?
$IP_ADDR
$REMOTE_ADDR_USER
$REMOTE_ADDR
$IP_ADDR_USER
Answer
Correct Answer:
$REMOTE_ADDR
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390.
Which of the following statements is true about the "new" operator in PHP?
It is used to define a new variable.
It creates and allocates memory for a new object.
It is used to call the constructor.
The "new" operator does not exist in PHP.
Answer
Correct Answer:
It is used to call the constructor.
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391.
Which function is used to remove the first element of an array?
array_remove_first_element
array_shift
array_ltrim
a[0] = nil
None of these
Answer
Correct Answer:
array_shift
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392.
Which of the following is false about cURL?
cURL can be used to send plain text data to a remote server.
cURL can be used to send both text as well as files using a single request.
cURL can be used to send files to a remote server.
Files cannot be sent using cURL.
Answer
Correct Answer:
Files cannot be sent using cURL.
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393.
What would be the output of the following code?
<?php
$arr = array("foo",
"bar",
"baz");
for ($i = 0; $i < count($arr); $i++) {
$item = $arr[$i];
}
echo "<pre>";
print_r($item);
echo "</pre>";
?>
Array
(
[0] => foo
[1] => bar
[2] => baz
)
foo
bar
baz
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394.
Which of the following is not a valid DOM method in PHP?
loadXMLFile()
loadXML()
loadHTMLFile()
loadHTML()
Answer
Correct Answer:
loadXMLFile()
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395.
What is "empty()"?
A function
A language construct
A variable
A reference
None of these
Answer
Correct Answer:
A function
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396.
Which of the following regular expressions can be used to check the validity of an e-mail addresss?
^[^@ ]+@[^@ ]+\.[^@ ]+$
^[^@ ]+@[^@ ]+.[^@ ]+$
$[^@ ]+@[^@ ]+\.[^@ ]+^
$[^@ ]+@[^@ ]+.[^@ ]+^
Answer
Correct Answer:
^[^@ ]+@[^@ ]+\.[^@ ]+$
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397. Should assert() be used to check user input?
Yes
No
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398.
Given the following array:
echo array_search('green', $array);
echo in_array('green', $array);
echo array_key_exists(2, $array);
echo array_search('red',$array);
Answer
Correct Answer:
echo array_search('green', $array);
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399.
What is the meaning of the system message, "Allowed memory size of <number> bytes exhausted"?
The available RAM memory is exhausted.
The available disk memory is exhausted.
This occurs randomly due to parsing errors.
The maximum memory allocated in php.ini is exhausted.
Answer
Correct Answer:
The maximum memory allocated in php.ini is exhausted.
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400.
What will be the output of following code? $a = 10; echo "Value of a = $a";
Value of a = 10
Value of a = $a
Undefined
Syntax Error
Answer
Correct Answer:
Value of a = 10
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401.
Which of the following is not a valid php.ini parameter with respect to file uploading?
upload_max_filesize
allow_url_fopen
upload_tmp_dir
post_max_size
Answer
Correct Answer:
allow_url_fopen
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402.
Which of these is not a valid SimpleXML Parser method?
simplexml_import_dom()
simplexml_import_sax()
simplexml_load_file()
simplexml_load_string()
Answer
Correct Answer:
simplexml_import_sax()
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403.
Which of the following is not a valid PHP parser tag?
<script>
<?p
<%
<?php
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404.
Which of the following is the operator with the highest precedence?
+
instanceof
new
=
None of the above
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405.
Which of the following file modes is used to write into a file at the end of the existing content, and create the file if the file does not exist?
r+
w+
a
x
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406.
Which of the following functions is not related to garbage collection in PHP?
gc_collect_cycles()
gc_cycles()
gc_disable()
gc_enable()
Answer
Correct Answer:
gc_cycles()
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407.
What is the best way to load a file that contains necessary functions and classes?
include($filename);
require($filename);
include_once($filename);
require_once($filename);
Answer
Correct Answer:
require_once($filename);
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408.
Which of the following is true about posting data using cURL in PHP?
Data can be posted using only the POST method.
Data can be posted using only the GET method.
Data can be posted using both GET and POST methods.
Data cannot be posted using cURL.
Answer
Correct Answer:
Data can be posted using both GET and POST methods.
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409.
What is the difference between die() and exit() in PHP?
die() is an alias for exit().
exit() is a function, die() is a language construct and cannot be called using variable functions.
die() accepts a string as its optional parameter which is printed before the application terminates; exit() accepts an integer as its optional parameter which is passed to the operating system as the exit code.
die() terminates the script immediately, exit() calls shutdown functions and object destructors first.
Answer
Correct Answer:
die() is an alias for exit().
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410.
Which of the following functions is not used in debugging?
var_dump()
fprintf()
print_r()
var_export()
Answer
Correct Answer:
var_export()
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411.
Which of these is not a valid PHP XML API?
libxml_clear_errors()
libXMLError()
libxml_get_errors()
libxml_use_internal_errors()
Answer
Correct Answer:
libxml_use_internal_errors()
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412.
Without introducing a non-class member variable, which of the following can be used to keep an eye on the existing number of objects of a given class?
Adding a member variable that gets incremented in the default constructor and decremented in the destructor.
Adding a local variable that gets incremented in each constructor and decremented in the destructor.
Add a static member variable that gets incremented in each constructor and decremented in the destructor.
This cannot be accomplished since the creation of objects is being done dynamically via "new."
Answer
Correct Answer:
Add a static member variable that gets incremented in each constructor and decremented in the destructor.
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413.
Consider the following class:
1 class Insurance
2 {
3 function clsName()
4 {
5 echo get_class($this);
6 }
7 }
8 $cl = new Insurance();
9 $cl->clsName();
10 Insurance::clsName();
Which of the following lines should be commented to print the class name without errors?
Line 8 and 9
Line 10
Line 9 and 10
All the three lines 8,9, and 10 should be left as it is.
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414.
Which of the following is not a valid API?
trigger_print_error()
trigger_error()
debug_backtrace()
debug_print_backtrace()
Answer
Correct Answer:
trigger_print_error()
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415.
What will be the output of the following code? $Rent = 250; function Expenses($Other) { $Rent = 250 + $Other; return $Rent; } Expenses(50); echo
$Rent;
300
250
200
The program will not compile.
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416.
Consider the following 2D array in PHP:
$array = array(array(141,151,161), 2, 3, array(101, 202, 303));
Which of the following will display all values in the array?
function DisplayArray($array) {
foreach ($array as $value) {
if (array_valid($value)) {
DisplayArray($value);
} else {
echo $value . "
";
}
}
}
DisplayArray($array);
function DisplayArray($array) {
for ($array as $value) {
if (valid_array($value)) {
DisplayArray($value);
} else {
echo $value . "
";
}
}
}
DisplayArray($array);
function DisplayArray($array) {
for ($array as $value) {
if (is_array($value)) {
DisplayArray($value);
} else {
echo $value . "
";
}
}
}
DisplayArray($array);
function DisplayArray($array) {
foreach ($array as $value) {
if (is_array($value)) {
DisplayArray($value);
} else {
echo $value . "
";
}
}
}
DisplayArray($array);
Answer
Correct Answer:
function DisplayArray($array) {
foreach ($array as $value) {
if (is_array($value)) {
DisplayArray($value);
} else {
echo $value . "
";
}
}
}
DisplayArray($array);
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417.
Which of the following statements regarding PHP forms, are correct?
In PHP, the predefined $_POST variable is used to collect values in a form with method="post".
In PHP, the predefined $_GET variable is used to collect values in a form with method="get".
In PHP, the predefined $_REQUEST variable contains the contents of both $_GET, $_POST, and $_COOKIE.
Information sent from a form with the POST method is invisible to others and has an 8MB limit on the amount of information to send, which cannot be changed.
Answer
Correct Answer:
In PHP, the predefined $_REQUEST variable contains the contents of both $_GET, $_POST, and $_COOKIE.
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418.
Which of the the following are PHP file upload-related functions?
upload_file()
is_uploaded_file()
move_uploaded_file()
None of these
Answer
Correct Answer:
is_uploaded_file()
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419.
If you want to pass a value to a function by reference, the correct way is:
d
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420.
The default value of register global in PHP is:
a
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421.
Which one of the following is turnary operator?
d
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422.
you have defined three variables $to, $subject, and $body to send an email. Which of the following methods would you use for sending an email?
a
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423.
Which of the following are “magic constant”?
c
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424.
which of the following are used for code reuse?
b,d
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425.
What will be the output of the following script?
d
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426.
Late PHP version support remote file accessing for the functions:
d
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427.
Which one is correct?
b
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428.
What is the output of the following code?
b
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429.
How can you hide the fact that web pages are written in PHP?
c
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430.
The setrawcookie() method of setting cookies is different from PHP standard method of cookie setting as:
It does not allow expiry time to be set
It can be used only once
It does not URL-ENCODE the value on its own
It does not allow domain setting
Answer
Correct Answer:
It does not allow expiry time to be set
It can be used only once
It does not URL-ENCODE the value on its own
It does not allow domain setting
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431.
How can you enable the cURL extension?
You should remove the semicolon in the front of "curl_extension" in php.ini.
Answer
Correct Answer:
You should remove the semicolon in the front of "curl_extension" in php.ini.
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432.
What is the primary difference between interfaces and abstract classes in PHP ?
Interfaces cannot have function implementations.
Answer
Correct Answer:
Interfaces cannot have function implementations.
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433.
What is PHAR?
The PHP way to distribute entire applications within a single file ("PHP Archive")
Answer
Correct Answer:
The PHP way to distribute entire applications within a single file ("PHP Archive")
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434.
What is the result of the following code ? <?php $a = 1; echo $a++; $a *= 2; echo ++$a; ?>
15
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435.
Which datatypes are treaded as arrays?
strings
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436.
What is the output from this example? $str = "My name is O\'Connor."; echo stripslashes($str);
My name is O'Connor.
", $MessageBody);
Answer
Correct Answer:
My name is O'Connor.
", $MessageBody);
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437.
What are the default header request protocols defined in PHP ?
All of these
Answer
Correct Answer:
All of these
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438.
Which keyword causes a conditional loop to skip to the start of the next iteration?
continue
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439.
What does this function do: function my_func($variable) { return (is_numeric($variable) && $variable % 2 == 0); }
Tests whether $variable is an even number
Answer
Correct Answer:
Tests whether $variable is an even number
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440.
The comparison $a <> $b means
$a is not equal to $b
Answer
Correct Answer:
$a is not equal to $b
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441.
Which variable assignment is 'by reference' in PHP ?
$value1= &$value;
Answer
Correct Answer:
$value1= &$value;
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442.
The following would return? extract( array( 'sexy' => 'a', 'and' => 'b', 'i' => 'c', 'know' => 'd', 'it' => 'e' ) ); return $sexy.$and.$i.$know.$it;
abcde
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443.
What is the value of $res in the following script? <?php $str = "1"; $int = 1; $res = ($str === $int); ?>
False, because the variables $str and $int are not of the same type.
Answer
Correct Answer:
False, because the variables $str and $int are not of the same type.
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444.
Which of the following will this function output: <? $father="mother"; $mother="son"; echo $$father; ?>
son
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445.
$table = array("old_value"); foreach($table as $row) { $row="new_value"; } echo $table[0]; will produce:
"old_value"
Answer
Correct Answer:
"old_value"
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446.
What will be the output of the following code: <?php class A {} class B {} class C extends B {} class D { function sayHello (A $argument) { echo '$argument is an instance of A'; } function sayHello (B $argument) { echo '$argument is an instance of B'; } } $d = new D(); $c = new C(); $d->sayHello($c);
PHP Fatal error
Answer
Correct Answer:
PHP Fatal error
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447.
Which of the following variables is not related to file upload?
max_execution_size
Answer
Correct Answer:
max_execution_size
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448.
How do you connect mysql with the use of PHP 5 new functions?
(both answers are correct)
Answer
Correct Answer:
(both answers are correct)
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449.
True or false? PHP provides the goto in the latest version.
True
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450.
What function in PHP allows you to find the position of the first occurrence of a substring?
strpos()
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451.
What Does OOM mean?
Object Oriented Model
Answer
Correct Answer:
Object Oriented Model
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452.
Which of following functions compute the intersection of arrays with additional index check and are defined newly in PHP 5?
array_uintersect_assoc(); array_uintersect_uassoc();
Answer
Correct Answer:
array_uintersect_assoc(); array_uintersect_uassoc();
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453.
What does php_strip_whitespace function return?
Returns the PHP source code in filename with PHP comments and whitespace removed.
Answer
Correct Answer:
Returns the PHP source code in filename with PHP comments and whitespace removed.
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454.
The number of parameters in setCookie function
7
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455.
What will be the result of the following code ? $a = 0 or 1; $b = 0 || 1; echo "$a, $b";
0, 1
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456.
What will be output of this code. function test(&$var) { $var=$var-1; return $var; } $returnVar = test(50); echo $returnVar. " is answer.";
Error message
Answer
Correct Answer:
Error message
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457.
Which of the following functions is a relative ftp function new to PHP 5?
ftp_alloc()
Answer
Correct Answer:
ftp_alloc()
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458.
What is the function to report errors from mysqli functions or queries?
mysqli_report();
Answer
Correct Answer:
mysqli_report();
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459.
Which function would you use to prepend one or more elements to the beginning of an array?
array_unshift()
Answer
Correct Answer:
array_unshift()
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460.
echo new stdClass == new stdClass, '-', new stdClass !== new stdClass;
1-1
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461.
What will the following script output? <?php $a = array (‘a’ => 20, 1 => 36, 40); array_rand ($a); echo $a[0]; ?>
Nothing
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462.
<?php abstract class Animal { function greeting() { $sound = $this->sound(); return strtoupper($sound); } function sound(); } class Dog extends Animal { function sound() { return "Woof!"; } } $dog = new Dog(); echo $dog->greeting(); ?>
Fatal error
Answer
Correct Answer:
Fatal error
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463.
How do you instantiate a new object from class foo? class foo { function do_foo() { echo "Doing foo."; } }
$bar = new foo;
Answer
Correct Answer:
$bar = new foo;
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464.
$a = array("pomme", "banane"); $b = array(1 => "banane", "0" => "pomme"); var_dump($a === $b); What does-it print ?
FALSE
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465.
What is the output in following codes? <?php $array1 = array("a" => "green", "red", "blue"); $array2 = array("b" => "green", "yellow", "red"); $result = array_intersect($array1, $array2); print_r($result); ?>
Array ( [a] => green [0] => red )
Answer
Correct Answer:
Array ( [a] => green [0] => red )
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466.
Which variable type can NOT be used as a type hint?
resource
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467.
How should you filter variables before passing to header()?
PHP's doing this itself nowadays
Answer
Correct Answer:
PHP's doing this itself nowadays
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468.
How do you get header information from a URL?
get_headers()
Answer
Correct Answer:
get_headers()
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469.
Which of following functions get a list of response headers sent (or ready to send)?
headers_list()
Answer
Correct Answer:
headers_list()
Note: This Question is unanswered, help us to find answer for this one
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470.
Which of the following functions compare the substrings of the parameters?
substr_compare()
Answer
Correct Answer:
substr_compare()
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471.
Which of the following functions set options in curl script?
curl_setopt()
Answer
Correct Answer:
curl_setopt()
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472.
The contents of an image file are stored in memory as $imString, but the original file is not available. Of the following, which uses the least amount of code and is a valid method of retrieving the dimensions of $imString?
return getimagesizefromstring($imString);
Answer
Correct Answer:
return getimagesizefromstring($imString);
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473.
What is the best way to iterate and modify every element of an array using PHP 5?
foreach($array as $key => &$val) { /* ... */ }
Answer
Correct Answer:
foreach($array as $key => &$val) { /* ... */ }
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474.
How to check if a directory exists?
file_exists($name);
Answer
Correct Answer:
file_exists($name);
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475.
To ensure that a given object has a particular set of methods, you must provide a method list in the form of an ________ and then attach it as part of your class using the ________ keyword.
interface, implements
Answer
Correct Answer:
interface, implements
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476.
How do you kill or destroy a session?
session_destroy();
Answer
Correct Answer:
session_destroy();
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477.
What is the correct way to include the file "time.inc" ?
<?php include "time.inc"; ?>
Answer
Correct Answer:
<?php include "time.inc"; ?>
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478.
What is output of the following code. $arr = "a"; $arr[0]="b"; echo $arr; echo $arr[0];
bb
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479.
$sweet = array('1' => 'apple', '2' => 'banana'); $fruits = array('delicious' => $sweet, 'sweet' => 'strawberry'); function myprint($item, $key) { echo "$key is $item\n"; } array_walk_recursive($fruits, 'myprint'); In above code, what is the output?
[1 is apple] [2 is banana] [sweet is strawberry]
Answer
Correct Answer:
[1 is apple] [2 is banana] [sweet is strawberry]
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480.
Which function can be used to rename files?
rename()
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481.
What is the difference between idate and date function?
idate function always returns an integer, but date function returns formatted date string or FALSE.
Answer
Correct Answer:
idate function always returns an integer, but date function returns formatted date string or FALSE.
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482.
Which function will list files and directories inside the specified path?
scandir()
Answer
Correct Answer:
scandir()
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483.
Which of the following functions allows you to store session data in a database?
session_set_save_handler();
Answer
Correct Answer:
session_set_save_handler();
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484.
Which of the following crpto return longest hash value
sha1()
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485.
Which of the following is a php resource?
(all of these)
Answer
Correct Answer:
(all of these)
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486.
Given: $email = ‘bob@example.com’; which code block will output example.com?
print substr($email, strpos($email, ‘@’) + 1);
Answer
Correct Answer:
print substr($email, strpos($email, ‘@’) + 1);
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487.
How to open file in read/write mode?
$handle = fopen("http://www.example.com/", "r+");
Answer
Correct Answer:
$handle = fopen("http://www.example.com/", "r+");
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488.
Which of the following function is used to display the properties of variable?
var_dump
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489.
In PHP 5 >= 5.3.0, which new operator was added?
GOTO
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490.
Which function would you use to append one or more elements to the end of the array?
array_push()
Answer
Correct Answer:
array_push()
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491.
Which of the lines below will output the following string: "PHP is "super easy" to use!"
echo "PHP is \"super easy\" to use!";
Answer
Correct Answer:
echo "PHP is \"super easy\" to use!";
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492.
What is the primary difference between a method declared as static and a normal method?
Static methods do not provide a reference to $this
Answer
Correct Answer:
Static methods do not provide a reference to $this
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493.
$text = 'He went to the school.'; echo strpbrk($text, 'w'); In the above code, what is the output?
went to the school.
Answer
Correct Answer:
went to the school.
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494.
The ____ operator is used to test if two values are identical in every way.
===
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495.
What visibility level will this class property get in PHP 5? var $cool = true;
public
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496.
What is the difference between $message and $$message?
Classic example of PHP’s variable variables
Answer
Correct Answer:
Classic example of PHP’s variable variables
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497.
How do you make PHP use a class file without having to require or include it manually?
Define __autoload($class) magic function
Answer
Correct Answer:
Define __autoload($class) magic function
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498.
Which values should be assigned to the variables $a, $b and $c in order for the following script to display the string Hello, World! <?php $string= "Hello, World!"; $a =?; $b =?; $c =?; if($a) { if($b &&!$c){ echo "Goodbye Cruel World!"; } else if(!$b &&!$c) { echo "Nothing here"; } } else { if(!$b) { if(!$a && (!$b && $c)) { echo"Hello, World!"; } else { echo"GoodbyeWorld!"; } } else { echo "Not quite."; } } ?>
False, False, True
Answer
Correct Answer:
False, False, True
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499.
Which of the following functions split the string and return the array?
str_split()
Answer
Correct Answer:
str_split()
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500.
How can we delete a file using php function.
unlink
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501.
Which of these functions will not result in a runtime error if the file requested does not exist or can't be opened?
include()
Answer
Correct Answer:
include()
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502.
$a = &$b; $b = 'Mary?'; print $a;
Mary?
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503.
Which of the following is not related to file
fappend
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504.
What is the best way to URL encode a string?
urlencode( $str )
Answer
Correct Answer:
urlencode( $str )
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505.
function foobar( ) { $a = func_get_args( ); return $a[2]; } print foobar('a',1,'b',2); What would the output be?
b
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506.
What is the best way of writing an IF/ELSE statement on one line?
echo ( $result ) ? "Win" : "Loss";
Answer
Correct Answer:
echo ( $result ) ? "Win" : "Loss";
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507.
$file = 'sample.txt'; $current = file_get_contents($file); $current .= "Additional Info"; file_put_contents($file, $current); What is the meaning of above code?
It means that certain string of which value is 'Additional Info' is added to the end of the file named sample.txt.
Answer
Correct Answer:
It means that certain string of which value is 'Additional Info' is added to the end of the file named sample.txt.
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508.
(8 < 1 || 4 >= 4 ) will return
True
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509.
Which of the following function is used to check type of array
is_array
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510.
The function used to iterate over array and object.
foreach
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511.
How can I identify the server IP address in PHP ?
$_SERVER['SERVER_ADDR'];
Answer
Correct Answer:
$_SERVER['SERVER_ADDR'];
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512. $x = 10.88; echo (int) $x;
10
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513.
( (4 >= 4 && 8 < 1) || (44 == 33 || 5 > 3) ) will return
TRUE
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514.
Name of the function to check the variable type is object
is_object
Answer
Correct Answer:
is_object
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515.
In mail($param1, $param2, $param3, $param4), the $param2 contains:
The subject
Answer
Correct Answer:
The subject
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516.
Which subversion of PHP 5 adds short array syntax?
4
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517.
What is the result of : $a = "abcd"; if(strpos('a', $a)) { return true; } else { return false; }
false
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518.
What is the output for the following code? <?php $value1=5; $value2= $value1--; $value2= $value1++; echo $value2; ?>
4
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519.
<?php $x = false or true; $y = false || true; var_dump($x); var_dump($y);
bool(false) bool(true)
Answer
Correct Answer:
bool(false) bool(true)
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520.
What is the time complexity of a call to array_search()?
O(N)
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521.
Which libraries are available for using regular expressions in PHP ?
Both of these.
Answer
Correct Answer:
Both of these.
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522.
The function checkdate() returns what data type?
Boolean
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523.
$a='1'; extract( array( 'a' => '2' ) ); echo $a; outputs ...
2
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524.
Which function opens an SQL ite database and creates the database if it does not exist?
sqlite_open()
Answer
Correct Answer:
sqlite_open()
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525.
Which of the following would be accepted as an argument parameter in the following function: function getEmotion(Emotion $emotion) { ... }
All of these
Answer
Correct Answer:
All of these
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526.
How do you retrieve the value of a variable called "name" which has been passed from a submitted form?
$_GET["name"];
Answer
Correct Answer:
$_GET["name"];
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527. What does MVC stand for?
Model View Controller
Answer
Correct Answer:
Model View Controller
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528.
HTML form input needs to be validated in order to avoid:
All of these
Answer
Correct Answer:
All of these
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529.
The PHP syntax is most similar to:
Perl and C
Answer
Correct Answer:
Perl and C
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530.
Which PHP function do you call to begin a PHP session?
session_start();
Answer
Correct Answer:
session_start();
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531.
In PHP in order to access MySQL database, use the:
mysqli_connect() function
Answer
Correct Answer:
mysqli_connect() function
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532.
Include files must have the file extension ".inc"
False
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533.
What is the correct way to require the file "time.inc" in a manner which will halt the script upon failure?
<?php require('time.inc'); ?>
Answer
Correct Answer:
<?php require('time.inc'); ?>
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534.
What does this statement do? <?php echo b"testing string"; ?>
It will throw an error
Answer
Correct Answer:
It will throw an error
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535.
For PHP version <= 5.3, how can we activate error reporting for all levels?
error_reporting(-1);
Answer
Correct Answer:
error_reporting(-1);
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536.
What will be the array $b after executing this code? $a = array(1, 3, 5); $b = array(2, 4, 6); $b += $a;
$b = array(2, 4, 6)
Answer
Correct Answer:
$b = array(2, 4, 6)
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537.
$i = 5; print $i++ + ++$i;
12
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538.
What result? $a = "1"; $a[$a] = "2"; echo $a;
12
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539.
What will this return:$value="Hello_World";$rt=explode("_",$value); echo $rt[0];
Hello
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540.
An array in PHP is an ordered map which associates
keys to values.
Answer
Correct Answer:
keys to values.
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541.
What does this output? $pos =strpos('Atlanta', 'a');echo $pos;
3
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542.
What is the correct syntax of mail() function in PHP?
mail($to,$subject,$message,$headers)
mail($from,$to,$subject,$message)
mail($to,$from,$subject,$message)
mail($to,$from,$message,$headers)
Answer
Correct Answer:
mail($to,$subject,$message,$headers)
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543.
What will be the output of the following code?<?$a = 3;print „$a‟;?>
3
$a
Syntax error
None of these
Answer
Correct Answer:
None of these
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544.
What is the output of the following PHP code snippet?<?php$var = “testing module”;$statement = „This is a $var‟;echo ($statement);?>
This is a testing module
This is a $var
The code will not work, and will give syntax error.
Answer
Correct Answer:
This is a testing module
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545.
Which of the following cryptographic functions in PHP returns the longest hash value?
md5()
sha1()
crc32()
All return the same hash value length.
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546.
What is the correct PHP command to use to catch any error messages within the code?
set_error(‘set_error’);
set_error_handler(‘error_handler’);
set_handler(‘set_handler’);
set_exception(‘set_exception’);
Answer
Correct Answer:
set_error_handler(‘error_handler’);
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547.
Which function will suitably replace „X‟ if the size of afile needs to be checked?$size=X(filename);
filesize
size
sizeofFile
getSize
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548.
Can php use gettext ?
Yes
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549.
Does PHP 5 support exceptions?
Yes
No
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550.
What will be the output of the following code?<?echo 5 * 6 / 2 + 2 * 3;?>
1
20
21
23
34
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551.
What is the best way to change the key without changing the value of a PHP array element?
$arr[$newkey] = $oldkey; unset($arr[$oldkey]);
$arr[$newkey] = $arr[$oldkey]; unset($arr[$oldkey]);
$newkey = $arr[$oldkey]; unset($arr[$oldkey]);
$arr[$newkey] = $oldkey.GetValue(); unset($arr[$oldkey]);
Answer
Correct Answer:
$arr[$newkey] = $arr[$oldkey]; unset($arr[$oldkey]);
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552.
What is the correct line to use within the php.ini file, to specify that 128MB would be the maximum amount of memory that a script may use?
memory_limit = 128M
limit_memory = 128M
memory_limit: 128M
limit_memory: 128M
Answer
Correct Answer:
memory_limit = 128M
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553.
What would occur if a fatal error was thrown in your PHP program?
The PHP program will stop executing at the point where the error occurred.
The PHP program will show a warning message and program will continue executing.
Since PHP is a scripting language so it does not have fatal error.
Nothing will happen.
Answer
Correct Answer:
The PHP program will stop executing at the point where the error occurred.
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554.
Which of the following will store order number (34) in an „OrderCookie‟?
setcookie(“OrderCookie”,34);
makeCookie(“OrderCookie”,34);
Cookie(“OrderCookie”,34);
OrderCookie(34);
Answer
Correct Answer:
setcookie(“OrderCookie”,34);
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555.
Which of the following is useful for method overloading?
__call,__get,__set
_get,_set,_load
__get,__set,__load
__overload
Answer
Correct Answer:
__call,__get,__set
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556.
What is the string concatenation operator in PHP?
+
||
.
|||
None of these
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557.
Which function can be used to delete a file?
delete()
delete_file()
unlink()
fdelete()
file_unlink()
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558.
What function should you use to join array elements with a glue string?
join_st
implode
connect
make_array
None of these
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559.
Which one of the following is not an encryption method in PHP?
crypt()
md5()
sha1()
bcrypt()
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560.
What enctype is required for file uploads to work?
multipart/form-data
multipart
file
application/octect-stream
None of these
Answer
Correct Answer:
multipart/form-data
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561.
For the following code:<?phpfunction Expenses(){function Salary(){ }function Loan(){function Balance(){ } } }?>Which of the following sequence will run successfully?
Expenses();Salary();Loan();Balance();
Salary();Expenses();Loan();Balance();
Expenses();Salary();Balance();Loan();
Balance();Loan();Salary();Expenses();
Answer
Correct Answer:
Expenses();Salary();Loan();Balance();
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562.
Which of the following will start a session?
session(start);
session();
session_start();
login_sesion();
Answer
Correct Answer:
session_start();
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563.
What is the correct way to send a SMTP (Simple Mail Transfer Protocol) email using PHP?
s.sendmail($EmailAddress, [$MessageBody], msg.as_string())
sendmail($EmailAddress, “Subject”, $MessageBody);
mail($EmailAddress, “Subject”, $MessageBody);
Answer
Correct Answer:
mail($EmailAddress, “Subject”, $MessageBody);
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564.
Which of the following is correct about Mysqli and PDO?
Mysqli provides the procedural way to access the database while PDO provides the
object oriented way.
Mysqli can only be used to access MySQL database while PDO can be used to access
any DBMS.
MySQLi prevents SQL Injection whereas PDO does not.
MySQLi is used to create prepared statements whereas PDO is not.
Answer
Correct Answer:
Mysqli can only be used to access MySQL database while PDO can be used to access
any DBMS.
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565.
What will be the output of the following code?<?phpvar_dump (3*4);?>
int(3*4)
int(12)
3*4
12
None of the above
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566.
Which of the following will print out the PHP call stack?
$e = new Exception; var_dump($e->debug());
$e = new Exception; var_dump($e->getTraceAsString());
$e = new Exception; var_dump($e->backtrace());
$e = new Exception; var_dump($e->getString());
Answer
Correct Answer:
$e = new Exception; var_dump($e->getTraceAsString());
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567.
Which of the following is not a PHP magic constant?
_FUNCTION__
__TIME__
__FILE__
__NAMESPACE__
__CLASS__
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568.
Which of the following variable declarations within a class is invalid in PHP?
private $type = „moderate‟;
internal $term = 3;
public $amnt = „500‟;
protected $name = „Quantas Private Limited‟;
Answer
Correct Answer:
internal $term = 3;
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569.
Which of the following is true about the singleton design pattern?
A singleton pattern means that a class will only have a single method.
A singleton pattern means that a class can have only one instance object.
A singleton pattern means that a class has only a single member variable.
Singletons cannot be implemented in PHP.
Answer
Correct Answer:
A singleton pattern means that a class can have only one instance object.
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570.
Which of the following is not a file-related function in PHP?
fclose
fopen
fwrite
fgets
fappend
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571.
Which of the following will check if a function exists?
function_exists()
has_function()
$a = “function to check”; if ($a ()) // then function exists
None of these
Answer
Correct Answer:
function_exists()
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572.
Which of the following is used to maintain the value of a variable over different pages?
static
global
session_register()
None of these
Answer
Correct Answer:
session_register()
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573. Which of the following methods should be used for sending an email using the variables $to, $subject, and $body?
mail($to,$subject,$body)
sendmail($to,$subject,$body)
mail(to,subject,body)
sendmail(to,subject,body)
Answer
Correct Answer:
mail($to,$subject,$body)
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574.
What is the best practice for running MySQL queries in PHP? Consider the risk of SQL injection.
Use mysql_query() and variables: for example: $input = $_POST[‘user_input’]; mysql_query(“INSERT INTO table (column) VALUES (‘” . $input . “‘)”);
Use PDO prepared statements and parameterized queries: for example: $input=
$_POST[“user-input”] $stmt = $pdo->prepare(„INSERT INTO table (column)
VALUES (“:input”); $stmt->execute(array(„:input‟ => $input));
Use mysql_query() and string escaped variables: for example: $input=
$_POST[“user-input”] $input_safe = mysql_real_escape_string($input);
mysql_query(“INSERT INTO table (column) VALUES („” . $input. “„)”);
Use mysql_query() and variables with a blacklisting check: for example: $blacklist =
array(“DROP”,”INSERT”,”DELETE”); $input= $_POST[“user-input”] if
(!$array_search($blacklist))) mysql_query(“INSERT INTO table (column) VALUES
(„” . $input. “„)”);
Answer
Correct Answer:
Use PDO prepared statements and parameterized queries: for example: $input=
$_POST[“user-input”] $stmt = $pdo->prepare(„INSERT INTO table (column)
VALUES (“:input”); $stmt->execute(array(„:input‟ => $input));
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575. What does the array_combine (a, b) function do?
It appends b to a
It associates all keys of a with the values of b and returns a new array
It returns a new array with all values of b added to the values of a
It doesn't exist
None of the above
Answer
Correct Answer:
It associates all keys of a with the values of b and returns a new array
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576. What is the associativity of +=?
left
right
it is non-associative
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577. Which fopen option opens the file for reading and writing; placing the file pointer at the beginning of the file without truncating it.
r
r+
w
W+
a
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578. Is sizeof() function returns the number of elements in an array?
yes
no
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579. What is empty () ?
A function
A language construct
A variable
A reference
None of the above
Answer
Correct Answer:
A language construct
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580. Knowing that the output of the first echo is "2.5", what will be the output of the third echo on Unix Machine?
2.5
25
2,5
2
Syntax error
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581. Is the PHP float type guaranteed to be 64 bit IEEE?
yes
no
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582. What will be the output of the following code?
0
1
5.0
Syntax error
None of the above
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583. What is the precedence between && and "and"?
&& is higher than "and"
"and" is higher than &&
They have the same precedence
Those operators don't exist<br><br>
Answer
Correct Answer:
&& is higher than "and"
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584. What function would you use to delete a file?
delete ()
delete_file ()
unlink ()
fdelete ()
file_unlink ()
Answer
Correct Answer:
unlink ()
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585. Will the trim function strip NULL bytes?
Yes
No
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586. What function will you use to remove the first element of an array?
array_remove_first_element
array_shift
array_ltrim
a[0] = nil
Answer
Correct Answer:
array_shift
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587. What will be the output of the following code?
H
e
l
o
" " (a space)<br><br>
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588. Which of the following is the operator with the lowest precedence?
new
and
, (comma)
=
Answer
Correct Answer:
, (comma)
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589. What will be the output of the following code?
True
False
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590. What will be the output of the the following code?
1
Syntax error
0
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591. What will be the output of the following code?
0
false
FALSE
Nothing
Syntax error
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592. With the following code, will the word Hello be displayed on screen?
yes
no
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593. Which of the following is a type of array in PHP?
string
compound
callback
scalar
struct
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594. What kind of regular expression does PHP include?
PCRE
Java REGEX
Ruby REGEX
None of the above
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595. What does the array_unshift () function do?
It shifts an element off the beginning of array
It shifts all bits of the array to the left
It undo what array_shift does
None of the above
Answer
Correct Answer:
It shifts an element off the beginning of array
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596. When comparing two arrays, what is the difference between == and === ?
== compares keys while === compares keys and values
=== also compares the order and types of the objects
=== compares the array references
They are identical
Answer
Correct Answer:
=== also compares the order and types of the objects
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597. What will be the output of the following code?
print
hello
print hello
fatal error
None of the above
Answer
Correct Answer:
fatal error
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598. What is the initial value of a integer and float variable?
0
1
NULL
Any value
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599. What is the output of the following code?
0
1
2
3
8
32
Syntax error
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600. password_hash() creates a new password hash using a strong one-way hashing algorithm. password_hash() is compatible with crypt(). Therefore, password hashes created by crypt() can be used with password_hash(). In the following sentence: $pass = password_hash('123456', PASSWORD_BCRYPT); echo strlen($pass); how many characters there are in the generated hash? and the hash generated is unique?
32 caracteres and the hash is unique.
60 caracteres and the hash is variable.
60 caracteres and the hash is unique.
40 caracteres and the hash is unique.
32 caracteres and the hash is variable.
Answer
Correct Answer:
60 caracteres and the hash is variable.
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601. function outputFn($a){ switch($a){ case $a>1: echo "1"; case $a===2: echo "2"'; case $a>2: echo "3"; } } outputFn(2); What's the output of the outputFn function?
123
12
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602. What is the output of the following code? $foo = 'bar'; $bar = 'bar' $$foo = 'foo' echo '$foo', '$bar';
foobar
barfoo
bar bar
foo bar
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603. $a = '1'; $b = &$a; $b = "2$b";
0
12
2
21
1
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604. What are traits for?
Add methods to a class
Create a class that inherit from multiple classes
Create a singleton
Answer
Correct Answer:
Add methods to a class
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605. What will be the values of $a and $b after the code below is executed? $a = '1'; $b = &$a; $b = "2$b";
$a = 21, $b = 21
$a = 1, $b = 2
$a = 1, $b = 21
Answer
Correct Answer:
$a = 21, $b = 21
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606. Reserved keywords such as "break" and "while" can be used as variable names.
True
False
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607. Which result will produce this code? class A { private $property = 1; public function getProperty() { return $this->property; } } class B extends A { protected $property = 2; public function __construct($v) { $this->property = $v; } } class C extends B { public $property = 3; } $c = new C(4); echo $c->property; echo $c->getProperty();
41
42
34
44
14
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608. What will be the output of the below code ? echo “1”.print(3)+3;
6"1"1
133
61
16
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609. What function should be used to escape strings for MySQL in PHP 5.5 and later?
mysqli_real_escape_string
mysqli_escape
mysql_escape_string
mysql_escape
mysql_real_escape_string
Answer
Correct Answer:
mysqli_real_escape_string
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610. var_dump(0123 == 123); var_dump('0123' == 123); var_dump('0123' === 123);
false
321
true
123
0123
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611. What is the new feature added in PHP 5.4.0 ?
Closures now support $this
Short array syntax has been added
Binary number format has been added
Support for traits
All above
Answer
Correct Answer:
All above
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612. How to capture exception's message? Note: consider Exception $e.
$e->getErrors();
$e->getMessage();
$e->getException();
$e->error();
$e->getExceptions();
Answer
Correct Answer:
$e->getMessage();
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613. Which one of the following keyword is used to inherit our subclass from a superclass?
inherit
extends
include
implements
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614. What will be the output of the following code? $a$a = 1; $b$b = 2; echo "$a$a + $b$b";
$a$a$b$b
3
Error, $ cannot be used inside variable names
Answer
Correct Answer:
Error, $ cannot be used inside variable names
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615. Which function will attempt to return a timestamp, in microseconds?
get_microtime()
microtime()
micrometer()
time( true )
Answer
Correct Answer:
microtime()
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616. Which of the folowing are valid float values?
4.5678
All of these
4.0
7e4
Answer
Correct Answer:
All of these
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617. Which array function checks if the specified key exists in the array
array_key_exists()
arrays_key_exists()
array_keys_exists()
array_key_exist()
Answer
Correct Answer:
array_key_exists()
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618. What is the result of the following: $a = (2 == '2') ? true : false; echo $a;
syntax error
true
false
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619. What is the result of the following code? $integer = 5; $string = strval($integer); var_dump($string);
none of these
int(1) 5
string(2) "5"
string(1) "5"
bool "False"
Answer
Correct Answer:
string(1) "5"
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620. .......... Returns the time of sunrise for a given day / location
date.sunrise()
date-sunrise()
date_sunrise()
datesunrise()
Answer
Correct Answer:
date_sunrise()
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621. What will be the output of this: $a = true; echo (is_null($a)) ;
bool(true)
false
0
true
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622. What will be the output of the following PHP code?
<?php
$fruits = array ("mango", "apple", "peach", "pear");
$fruits = asort ($fruits);
printr ($fruits);
?>
Array ( [1] => apple [0] => mango [2] => peach [3] => pear )
Array ( [1] => apple [0] => mango [3] => peach [2] => pear )
Array ( [0] => apple [1] => mango [2] => peach [3] => pear )
Answer
Correct Answer:
Array ( [1] => apple [0] => mango [2] => peach [3] => pear )
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623. Which number of primitive types does PHP support?
8
9
5
6
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624. file_exists() will return false when
This function returns TRUE for files inaccessible due to safe mode restrictions.
When the system clock is set behind the date of the file.
Files are larger than 50Mb.
Broken filesystem links.
Answer
Correct Answer:
Broken filesystem links.
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625. How will you find out the value of current session id?
By using: session_id()
By using: session-id()
By using: session id()
Answer
Correct Answer:
By using: session_id()
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626. What does this statement means $a === $b ?
if $a is not equal to $b
if $a is equal to $b
if $a is equal to $b, and they are of the same type.
Answer
Correct Answer:
if $a is equal to $b, and they are of the same type.
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627. Are ZIP extensions available by default in PHP 5.x ?
No
Yes
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628. Which of the functions is used to sort an array in descending order?
Time's Up!
dsort()
asort()
rsort()
sort()
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629. What will be the output of the below code ? echo 4<<4;
16
64
8
44
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630. What is the answer of this $a = 'b'; $b = 1; echo '$${a}';
$b
$${a}
none of this
1
$a
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631. What does this display? function counter($a){ $result = ++$a++; return $result; } echo counter(5);
7
6
Error
5
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632. What function should you use to check a supplied password against a password hashed using password_hash?
password_test
Call password_hash again and compare the generated hash with the stored hash
password_verify
password_confirm
verify_password
Answer
Correct Answer:
password_verify
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633. What function can be used to hash a password for storage?
do_hash
get_hashed_password
password_hash
md5
hash_password
Answer
Correct Answer:
password_hash
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634. What does this display: Class Obj{ public $a = 2; public function __construct($var=null){ if(!empty($var)) $this->a = $var } } $obj = new Obj(0); echo $obj->a;
2
0
Error: Invalid property
Null
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635. $var = 'green'; $str = 'The apple is $var \n'; echo $str; What will be displayed ?
The apple is $var
The apple is green \n
The apple is green
The apple is $var \n
Answer
Correct Answer:
The apple is $var \n
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636. What will show next code: $data = new stdClass; $data->var1 = 'word'; $data->var2 = 'text'; print_r( json_decode( json_encode($data), true ) );
stdClass Object ( [var1] => word [var2] => text )
Array ( [var1] => word [var2] => text )
{'var1': 'word', 'var2': 'text' }
Object ( [var1] => word [var2] => text )
{'var1' => 'word', 'var2' => 'text' }
Answer
Correct Answer:
Array ( [var1] => word [var2] => text )
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637. What's the result of $b ? $a = 3; $b = &$a; $a = $a*4; echo $b;
12
Fatal error
4
3
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638. What will the following code output? $array = array("dog","cat","pig"); $str = ""; foreach($array as $value){ $value .= $value . $str; } print_r($array);;
Array([0] => dog [1] => dogcat [2] => dogcatpig)
Array([0] => dog [1] => cat [2] => pig)
Array([0] => dogdog [1] => catcat [2] => pigpig)
Array([0] => dogdog [1] => dogdogcatcat [2] => dogdogcatcatpigpig)
Answer
Correct Answer:
Array([0] => dog [1] => cat [2] => pig)
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639. What is the output of this : $a = true; var_dump($a);
true => bool
bool true
true (bool)
bool (true)
bool => true
Answer
Correct Answer:
bool (true)
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640. In PHP, the die() and exit() functions do the exact same thing.
True
False
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641. Which of these is a superglobal variable??
$_FILE
$_SITE
$_PHP_VERSION
$_SERVERS
$_SESSION
Answer
Correct Answer:
$_SESSION
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642. Which splits a string to an array ?
strtr
strchr
str_split
str_replace
strlen
Answer
Correct Answer:
str_split
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643. How you fetch this ? $connect = mysqli_connect("ip","test","pass"); msqli_query($connect,"use test"); $query = msqli_query($connect,"SELECT name FROM question");
fetch_array()
mysqli_fetch_array()
fetch()
my_fetch()
Answer
Correct Answer:
mysqli_fetch_array()
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644. How do you create an object ?
$object = new className->create;
$object = className();
$object = className()->create();
$object = new className();
Answer
Correct Answer:
$object = new className();
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645. What is the name of the PHP configuration file?
php_server.conf
php.ini
php.conf
vhost.conf
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646. What is the syntax to compare two values?
$a == $b
$a :: $b
$a = $b
$a : $b
$a - $b
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647. How to display a string?
print
printf
show
echo
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648. The values 0, "0", and FALSE are treated equally in all PHP functions.
Correct.
Incorrect.
Answer
Correct Answer:
Incorrect.
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649. What will be the output of the following PHP code if date is 24/02/2008? format('l,F,js,Y') ?>
Sunday, February 24th 2008
Sunday, 24 02 2008
Sunday, 02 24 2008
Sunday, 24th February 2008
Answer
Correct Answer:
Sunday, February 24th 2008
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650. Result ?
ok'
"ok'"
ok '
ok
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651. Which command allow you to display the php version through the console ?
php --help
php -v
php -version
php -a
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652. ................Checks a date for numeric validity.
Verify_date
checkdate
verifydate
check_date
Answer
Correct Answer:
checkdate
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653. What will this code output? $string = "1234567890234567890"; $pos = strpos($string, "2", 2); echo "The number two was found at position $pos";
The number two was found at position 11
The number two was found at position 10
The number two was found at position 1
The number two was found at position 2
Answer
Correct Answer:
The number two was found at position 10
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654. What function sorts array in the ascending order?
ascendsort()
sort()
asort()
ascsort()
rsort()
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655. What will be output?
5
13
8
14
9
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656. What will be the output of the following code:function foobar( $arg ){ static $a = 0; echo $arg; $a++; return $a; } echo foobar( 1 ); echo foobar( 3 );
1031
1132
1123
13
1030
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657. What elements will the following script output? 'a', 1 => 'b'); var_dump ($array); ?>
0 => 'a', 1 => 'b'
It will output NULL
1 => 'b'
True => 'a', 1 => 'b'
None
Answer
Correct Answer:
It will output NULL
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658. What is the purpose of this function? headers_sent()
Send the HTTP headers
Checks if / where the HTTP headers have been sent
Checks where the HTTP headers have been sent
Checks if the HTTP headers have been sent
Answer
Correct Answer:
Checks if / where the HTTP headers have been sent
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659. What does the rsort() function do?
sort associative arrays in descending order, according to the value
sort arrays in descending order
sort arrays in ascending order
Answer
Correct Answer:
sort arrays in descending order
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660. Which of the following statements can be used to set the time zone in individual scripts?
date_set_timezone(‘Europe/London’);
date_default_timezone_set(‘Europe/London’);
date_set_default_timezone(‘Europe/London’);
Answer
Correct Answer:
date_default_timezone_set(‘Europe/London’);
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661. How to start PHP interactive console?
php -c
php -a
php -i
php --console
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662. What is the difference between $name and $$name
$name is a variable and $$name is reference variable ?
$$name doesn't exist
there's no differences
Answer
Correct Answer:
$name is a variable and $$name is reference variable ?
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663. Which is the php closing tag?
?>
php?>
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664. If $a = 1 and $b = 2, how can you switch values of a and b, so we get $a = 2 and $b = 1?
$a = $b; $b = $a;
$a, $b = $b, a;
$c = $a; $a = $b; $b = $c;
Answer
Correct Answer:
$c = $a; $a = $b; $b = $c;
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665. Which of the following is the php opening tag?
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666. What the differences between Get And Posts methods ?
Get have limited size data to send for request
Post have limited size data to send for request
Answer
Correct Answer:
Get have limited size data to send for request
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667. What is the default extension for PHP files
.php
.exe
.phpx
.html
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668. PHP can be combined wiht html
True
Flase
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669. How will you create a database using PHP and MySQL?
mysql_create_db(Database Name)
mysql_create_db("Database Name")
Answer
Correct Answer:
mysql_create_db("Database Name")
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670. $_GET display parameters in the URL?
True
False
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671. What is the correct way to join strings in php? $str = "abcdef" + "ghi"; $str = "abcdef" . "ghi"; $str = join("abcdef","ghi"); $str = "abcdef" plus "ghi"
$str = "abcdef" plus "ghi"
$str = "abcdef" . "ghi";
$str = "abcdef" + "ghi";
$str = join("abcdef","ghi");
Answer
Correct Answer:
$str = "abcdef" . "ghi";
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672. Use of ===
Returns true if $x is equal to $y
Returns true if $x is equal to $y, and they are of the same type
Returns false if $x is equal to $y
Returns false if $x is equal to $y, and they are of the same type
Answer
Correct Answer:
Returns true if $x is equal to $y, and they are of the same type
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673. What does PHP stand for?
PHP: Hypertext Preprocessor
Personal Home Page
Programming Home Pages
Answer
Correct Answer:
PHP: Hypertext Preprocessor
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674. What is the difference between public, protected and private in a class definition?
Public makes a class member available to "everyone", protected makes the class member available to only itself and derived classes, private makes the class member only available to the class itself.
Public and static works only for methods, protected and private - only for class properties.
Wrong list, should be public, available for everyone, and private, available only inside a class.
Public can be accessed by its name, protected - only with using $this, and private can't be accessed from outside the class.
Answer
Correct Answer:
Public makes a class member available to "everyone", protected makes the class member available to only itself and derived classes, private makes the class member only available to the class itself.
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675. Output of following code:
5
2
12
"Hello world!"
10
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676. What does the in_array() function in PHP do?
Checks if a variable contains an array
Checks if a value exists in an array
Return the values from a single column in the input array
None of the above
Checks if a key exists in an array
Answer
Correct Answer:
Checks if a value exists in an array
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677. Which modifier you should use in function date() to get difference to Greenwich time (GMT) in hours?
E
O
Z
P
T
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678. What will be the output of <?php echo strrpos('Hello world!', 'o'); ?>?
5
-5
7
4
8
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679. What is the preferred way to write this if statement, and why?
if( $someVar = 5 )
if( 5 == $someVar ) and if( $someVar == 5 )
(5 == $someVar)
if $someVar == 5
Answer
Correct Answer:
if( 5 == $someVar ) and if( $someVar == 5 )
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680. What is the cause of this warning: 'Warning: Cannot modify header information - headers already sent'?
body data was sent, causing headers to be sent too.
many headers sent in one time
headers are incorrect
Answer
Correct Answer:
body data was sent, causing headers to be sent too.
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681. What will be the output of , if the page was accessed via "https://example.com/?section=predef_vars&category=_server&page=request_uri#content"?
example.com/?section=predef_vars&category=_server&page=request_uri
/?section=predef_vars&category=_server&page=request_uri
/?section=predef_vars&category=_server&page=request_uri#content
/predef_vars/_server/request_uri
Answer
Correct Answer:
/?section=predef_vars&category=_server&page=request_uri
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682. Which is not a magic function in PHP?
__toString()
__toNumber()
__wakeup()
__call()
Answer
Correct Answer:
__toNumber()
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683. Is it possible to initiate abstract class?
Calling constructor
Through implemented class
YES
During complie time
Answer
Correct Answer:
Through implemented class
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684. What the result of the following code: function cube($n) { return($n * $n * $n); } $a = array(1, 2, 3, 4, 5); $b = array_map("cube", $a); print_r($b);
'1*8*27*64*125'
Array ( [0] => 1 [1] => 8 [2] => 27 [3] => 64 [4] => 125 )
Array ( [1] => 1 [8] => 8 [27] => 27 [64] => 64 [125] => 125 )
Answer
Correct Answer:
Array ( [0] => 1 [1] => 8 [2] => 27 [3] => 64 [4] => 125 )
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685. Which function makes keys from array to become values and values from array to become keys?
array_flip
array_combine
array_reverse
Answer
Correct Answer:
array_flip
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686. What does DRY stand for?
Don't remember Yonkers
Don't repeat yourself
Digitally rendered yak
Dreadful rendition of yourself
Answer
Correct Answer:
Don't repeat yourself
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687. What value will be the value printed? $a = 'b'; $b = 0; echo "${$a}";
0
nothing
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688. What function is used to calculate the sum of values in an array
sum_array();
get_sum();
array_sum();
sum();
Answer
Correct Answer:
array_sum();
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689. What function is used to insert one or more elements to the end of an array.
insert_array();
push_array();
array_insert();
array_push();
Answer
Correct Answer:
array_push();
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690. Use of Unlink()
Remove link from user field
Not a php function
Delete file from filesystem
Call link
Answer
Correct Answer:
Delete file from filesystem
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691. What function in PHP to display?
readln
echo
writeln
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692. What is the end tag in PHP
GET
echo
<?php
?>
$
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693. $array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4); $array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8); var_dump(array_diff_key($array1, $array2));
array(2) { [int(2)]=>"red" [int(4)]=>"purple" }
array(2) { ["red"]=>int(2) ["purple"]=>int(4) }
Answer
Correct Answer:
array(2) { ["red"]=>int(2) ["purple"]=>int(4) }
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694. Wich is the value returned by the preg_match function in php?
The number of coincidence of the regexp
True if match false if don't match the regexp
Answer
Correct Answer:
True if match false if don't match the regexp
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695. Which keyword is used to create object of a class in PHP?
this
ob
object
new
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696. What is the opening tag for PHP
<?php
?>
echo
<start>
$
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697. $message vs. $$message . what is the difference
Both are same
Not valid
$message is a variable with a fixed name. $$message is a variable whose name is stored in $message.
Show error
Answer
Correct Answer:
$message is a variable with a fixed name. $$message is a variable whose name is stored in $message.
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698. What function should you use to read the contents of a file into a string?
file_get_contents()
include_once()
file_as_str()
file()
require()
Answer
Correct Answer:
file_get_contents()
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699. What is the output of these line of codes?
H:date
Have a good day!
20 x Have a good day!
x 20
Have a good day! x 20
Answer
Correct Answer:
Have a good day!
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700. Does ZIP extensions available by default in PHP 5.x ?
Yes
No
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701. What doesn this statement means $a === $b
if $a is equal to $b, and they are of the same type.
if $a is not equal to $b
if $a is equal to $b
Answer
Correct Answer:
if $a is equal to $b, and they are of the same type.
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702. Wich will be the result of execute the following code
File: view.php
File: test.php
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703. Which PHP function reads entire file into an array?
file
readfile
file_get_contents
fgets
fopen
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704. Which of the following is a predefined class in PHP?
PHP_RpcClient
ErrorFault
__PHP_Incomplete_Class
Special_Iterator
None of them
Answer
Correct Answer:
__PHP_Incomplete_Class
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705. What is the output of the following code: "<?php $x = 0x22; echo <<<'END' $x END; ?>"
Syntax error
34
18
$x
0x22
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706. What will the function below print when called? $value = "hello world"; function printHello($x = "hello") { $x = $value; var_dump($x); }
hello
NULL
hello world
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707. The getdate() function returns
A Boolean
A string
An array
An integer
A floating-point number
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708. What will the following script output?
" <?php $time = strtotime ('2004/01/01'); echo date ('H:\i:s', $time); ?>"
00:00:00
00:i:00
12:00:00
12:i:00
-1
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709. <?php $x = 1; echo($x++ + ++$x + $x)*2; Which will the output be?
16
12
14
15
13
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710. Which function is used to read an entire file into an array ?
fwrite
file_to_array
file
file_get_contents
fgets
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711. Which PHP extension allows you to simplify converting between different calendar formats?
All of these
Julian
date/time
calendar
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712. Is there a function to listen on E_ERROR (fatal) errors?
register_shutdown_function()
set_error_handler()
It's not possible
Answer
Correct Answer:
register_shutdown_function()
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713. Which of the following is not a valid PHP variable type conversion?
array to object
reference to array
string to object
object to reference
Answer
Correct Answer:
object to reference
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714. Which elements can be encapsulated by namespaces?
Classes, functions and constants
Classes, functions, constants and variables
Only classes
Answer
Correct Answer:
Classes, functions and constants
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715. What does this code do? namespace Hello\World;
It creates two namespaces : "Hello" and "World"
It creates one namespace : "World"
It creates two namespaces : "Hello" and "Hello\World"
It creates one namespace : "Hello\World"
It creates two namespaces : "Hello\World" and "World"
Answer
Correct Answer:
It creates two namespaces : "Hello" and "Hello\World"
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716. Which function returns the size of a specified file on the FTP server?
ftp_size()
get_ftp_size()
ftp_file_size()
ftp_amount()
Answer
Correct Answer:
ftp_size()
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717. Is it possible to typehint function arguments using native types (String, Bool, Array, Int, Float, Binary...)?
All types except String
Yes, using all types
Only Array is supported
Answer
Correct Answer:
Only Array is supported
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718. How do you call a static method defined by the called class from a parent class?
None of these. It is not supported in the language. Parent classes cannot access static methods defined by children.
parent::func();
self::someFunc();
$obj = new __CLASS__; $obj->func();
static::someFunc();
Answer
Correct Answer:
static::someFunc();
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719. $a = array('z','x','y'); $b = sort($a); The value of $b is?
array('x','y','z')
False
array('z','y','x')
True
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720. What does mt_srand( [int $a] ); do?
This function does not exist
Initializes a random number generator
Returns a random string of the length specified by the first argument
Returns a random integer
Subtracts a random integer from the passed argument and returns the result
Answer
Correct Answer:
Initializes a random number generator
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721. Which function would you use to obtain the ASCII value of a character?
val( );
asc( );
chr( );
ord( );
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722. True or False? Within the eval() function, code must be opened and closed with PHP tags, i.e.
True, you MUST use PHP tags as everywhere
False, but you can still exit and enter PHP mode using tags
False. You can't use PHP tags with eval()
Answer
Correct Answer:
False, but you can still exit and enter PHP mode using tags
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723. Which PHP function would you use to get information about the current session cookie?
set_cookie()
session_get_cookie_params()
get_cookie()
session_set_cookie_params()
Answer
Correct Answer:
session_get_cookie_params()
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724. Which function can be used to convert data into a binary string according to a specified format?
printf()
nex2bin()
pack()
encode_hex()
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725. What data types cannot be used with PHP5 Type Hinting?
Strings, Interface
Objects, Array
Integer, Strings
Integers, Array
Answer
Correct Answer:
Integer, Strings
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726. What will be the output: preg_match( '@^(?:http://)?([^/]+)@i', 'http://www.php.net/index.html', $matches ); $match = $matches[1]; echo $match;
www.php.net/index.html
www.php.net
http://www.php.net/
error message
http://www.php.net/index.html
Answer
Correct Answer:
www.php.net
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727. Which type of error can NOT be caught with a custom error handler?
E_USER_ERROR
E_NOTICE
E_RECOVERABLE_ERROR
E_WARNING
E_ERROR
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728. Which of the following protocols is not supported by PHP streams?
bz2
imap
ssh
ftp
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729. Which function returns an item from the argument list?
func_num_args()
None of these
func_get_arg()
func_get_args()
Answer
Correct Answer:
func_get_arg()
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730. Which of the following code snippets will split a string into an array with 3 elements?
$array = str_split("a b c", 2);
$array = sscanf("a b c", "%s %s %s");
$array = explode(" ", "a b c");
All of them
$array = split(" ", "a b c");
Answer
Correct Answer:
All of them
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731. What does this display? 1, 'b'=>2, 'c'=>3); echo key($x);
array( 0, 1, 2 )
0
"a"
array( 'a', 'b', 'c' )
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732. Which of the following network transports doesn’t PHP support?
tcp
udg
pdc
unix
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733. Which of the following functions inserts one or more elements to the beginning of an array?
array_push()
array_unshift()
array_shift()
array_walk()
array_merge()
Answer
Correct Answer:
array_unshift()
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734. What is the value of $a in the following:
NULL
array( 2 )
array( 0, 1 )
array( 0, 2 )
Answer
Correct Answer:
array( 0, 1 )
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735. Which PHP function will return a file's last access time?
filectime()
fileaccesstime()
fileatime()
file_access_time()
Answer
Correct Answer:
fileatime()
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736. What is the result of the following code : "<?php echo (strpos('abcdef', 'a')) ? : -1; ?>"
Syntax error
-1
0
true
1
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737. What is the correct way to call an anonymous function?
$func($var);
anonymous($var);
callback($functionName, $var);
call_function($var);
Answer
Correct Answer:
$func($var);
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738. is_a( $a, $b ) will:
it is not a built-in php function
check if $a is of class "$b" or has this class as one of its parents
Check if $a is of type "$b"
Answer
Correct Answer:
check if $a is of class "$b" or has this class as one of its parents
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739. What is the output of the following code? $a = '12345'; $a[$a[2]] = 3; echo $a;
13345
12335
11234
12345
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740. What will be the final structure of the following array? $animals = array( 'dog', 'cat', true => 'lion' );
Syntax Error will be thrown, as all keys must be of the same type
array( 0 => 'dog', 1 => 'lion' ) - boolean true will be changed to integer 1
Syntax Error will be thrown, as array keys can't be boolean values
array( 0 => 'dog', 1 => 'cat' ) - element with boolean key will be ignored
array( 0 => 'dog', 1 => 'cat', true => 'lion' )
Answer
Correct Answer:
array( 0 => 'dog', 1 => 'lion' ) - boolean true will be changed to integer 1
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741. What is the output of the following code?
abcde6666666
abcde777777
abc777
777abc
abcde67
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742. An object can be counted with count() and sizeof() if it:
Has a public __count() method
Was cast to an object from an array
None of the above
Implements ArrayAccess
Answer
Correct Answer:
None of the above
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743. Sleep(3000); will sleep the page for?
3 seconds
30 seconds
3000 seconds
300 seconds
Answer
Correct Answer:
3000 seconds
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744. What does the glob() function return?
All system global variables
An array of all global variables into the user defined function
An array of filenames / directories matching a specified pattern
Answer
Correct Answer:
An array of filenames / directories matching a specified pattern
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745. Given an array of images, $images = array("img12.png", "img10.png", "img2.png", "img1.png"), which function will sort $images into ("img1.png", "img2.png", "img10.png", "img12.png")?
natsort($images);
usort($images);
asort($images);
ksort($images);
arsort($images);
Answer
Correct Answer:
natsort($images);
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746. When adding ('+' function) two variables of type integer and type string, what type is the resulting value?
String
Depends on the content of the string
Integer
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747. Given the following code: printVar(); ?> What will the output be?
Access HelloWorld Hi!
Access Hi!
HelloWorld Access
HelloWorld Hi!
Answer
Correct Answer:
Access Hi!
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748. What is the output of the following code? $a='20'; $a -= 5; echo $a++;
Type mismatch error message
16
15
'20-5'
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749. What is the result of calling json_encode() on an empty array?
{} - An empty JavaScript object
[] - An empty JavaScript array
undefined
'' - An empty JavaScript string
Answer
Correct Answer:
[] - An empty JavaScript array
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750. What is the output of the following code? $one='two'; $two='one'; echo $$$one;
generates an error
two
one
does not output anything
onetwo
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751. What is the default timeout of a PHP session cookie ?
30 minutes
15 minutes
Never
Depends on the client browser
Until the browser is closed
Answer
Correct Answer:
Until the browser is closed
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752. Which mode parameter should be used with the fopen() function to open a file and point to the end for writing only?
c+
a
a+
w
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753. Choose the correct output of: "<?php $email = 'admin@domain.tld'; echo strstr($email, '@'); ?>"
@domain.tld
admin
domain.tld
admin@domain.tld
Answer
Correct Answer:
@domain.tld
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754. Which function can be used to simplify searches in databases where you know the pronunciation but not the spelling
preg_search
explode
soundex
parse_str
strtolower
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755. PHP's echo and print functions are not exactly alike. Which will accept multiple parameters and concatenate them in its "without parentheses" form?
echo
both echo and print
neither echo nor print
print
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756. What does the use of the final keyword in a method declaration prevent?
Child classes from overriding the method.
Specific properties within a class from being modified.
Objects from being modified.
All of these
Answer
Correct Answer:
Child classes from overriding the method.
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757. What will the following code output: array_map("print_r", array( 'a', 'b' ) );
Array{ [0] => 'a', [1] => 'b' }
a
Nothing
ab
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758. use keyword is used only for namespace
true
false
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759. $a = array('a' => 0, 'b' => 0, 'c' => 1, 'd' => 2); $b = array_flip($a); var_dump($b); What does the 'var_dump' function show ?
array(3) { [0]=> string(1) "b" [1]=> string(1) "c" [2]=> string(1) "d" }
array(3) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> string(1) "d" }
array(4) { 'd' => int 2 'c' => int 1 'b' => int 0 'a' => int 0}
Answer
Correct Answer:
array(3) { [0]=> string(1) "b" [1]=> string(1) "c" [2]=> string(1) "d" }
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760. How do you get the number of arguments passed to a PHP function?
$argc variable
count() function
None of these
$argv variable
Answer
Correct Answer:
None of these
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761. "virtual()" in PHP
marks the method as virtual, so it could be overridden
makes the final method overrideable again
is equivalent to the keyword "abstract"
is an Apache-specific function
Answer
Correct Answer:
is an Apache-specific function
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762. Which of the following functions does not have a resource for a return type?
None of these
fopen()
mysql_connect()
strrpos()
Answer
Correct Answer:
strrpos()
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763. When passing an object to json_encode(), the default behavior can be modified by:
It's not possible to change the default behavior.
Implementing the JsonSerializable interface.
Defining the __toArray() function.
Defining the __toJson() function.
Answer
Correct Answer:
Implementing the JsonSerializable interface.
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764. How would you fall back on the default value of 'Unknown', if a request-parameter is missing or empty?
$name = (!empty($_GET['name'])? $_GET['name'] : ''Unknown'');
$name = (!empty($_GET['name'])? $_GET['name'] = ''Unknown'');
You can't because if 'name' is not set in the URL, it will produce an error.
$name = (empty($_GET['name'])? $_GET['name'] .= ''Unknown'');
Answer
Correct Answer:
$name = (!empty($_GET['name'])? $_GET['name'] : ''Unknown'');
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765. What is the output of the following code? function luckyA (&$beebar){ $beebar *= 2; return $beebar; } $x= 4; $y = luckyA($x); $x += 5; echo $x . ', ' . $y;
13, 8
9, 8
13, 6
4, 5
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766. Which of those is not magic method?
__clone
__toString
__sleep
__callStatic
__toInt
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767. Which PHP function is used to replace a string?
substr_replace()
str_replace()
All of these
str_ireplace()
Answer
Correct Answer:
All of these
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768. Which one of the following is the correct abstract method?
abstract protected awesomeMethod();
abstract function awesomeMethod()
protected function awesomeMethod()
abstract protected function awesomeMethod();
Answer
Correct Answer:
abstract protected function awesomeMethod();
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769. print_r( 2 ) outputs:
int(2)
Array { [0] => 2 }
2
Throws an exception
Nothing, but returns false
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770. Which of the following functions can be used to execute a shell command?
system();
All of these
passthru();
exec();
Answer
Correct Answer:
All of these
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771. Which of these is correct usage of the chmod() function?
chmod('/path/to/file', '-rwxr-xr-x');
chmod('/path/to/file', 0x755);
chmod('/path/to/file', 0755);
chmod('/path/to/file', 755);
Answer
Correct Answer:
chmod('/path/to/file', 0755);
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772. PHP variable $hello is set to “HELLO WORLD". Which statement would return "Hello World" instead?
echo ucfirst($hello);
echo ucfirst(strtolower($hello));
echo ucwords($hello);
echo ucwords(strtolower($hello));
Answer
Correct Answer:
echo ucwords(strtolower($hello));
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773. class A{} class_alias( 'A', 'B' ); var_dump(new B); outputs ...
NULL
object(A)#1 (0) { }
bool(false)
object(B)#1 (0) { }
Answer
Correct Answer:
object(A)#1 (0) { }
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774. What is the correct way to assign a class constant?
constant MY_CONSTANT = 'value';
const MY_CONSTANT = 'value';
private MY_CONST = 'value';
const $myConstant = 'value';
Answer
Correct Answer:
const MY_CONSTANT = 'value';
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775. Which PHP function checks a month, day, and year number to determine if they form a valid Gregorian date?
verifydate()
checkdate()
verify_date()
check_date()
Answer
Correct Answer:
checkdate()
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776. What is the output of the following code? class angryBob{ public function angryBob(){ $this->apple = "Taken away by Bob"; } } class sillyBill extends angryBob{ var $apple; public function sillyBill() { $this->apple = "Eaten by Bill"; parent::angryBob(); } } $Bill = new sillyBill; echo $Bill->apple;
nothing happen
Eaten by Bill
Taken away by Bob
error message because angryBob::apple not declared
Bill is very upset
Answer
Correct Answer:
Taken away by Bob
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777. What does the following PHP code do? preg_filter($pattern, $replace, $subject)
Performs a regular expression search and replace
Returns array entries that match the pattern
None of these
Performs a regular expression search and replace using a callback
Answer
Correct Answer:
Performs a regular expression search and replace
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778. Which of the following is true about the "touch" function in PHP? Signature: touch($filename, $time) : boolean
$time is a required parameter of this function.
Modification timestamp is not modified, only access time (in the filesystem)
If the file does not exist, it will be created.
Answer
Correct Answer:
If the file does not exist, it will be created.
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779. PHP scripts can be saved, and included later, under which allowed file extensions?
.inc and .php
Any File Extension
.php ONLY
.inc, .common and .php
Answer
Correct Answer:
Any File Extension
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780. To determine if the file pointer is at the end of a successfully opened file, use the...
feof() function.
eof() function.
$file_end variable.
$end variable.
Answer
Correct Answer:
feof() function.
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781. In PHP5, your "construct" method must be named the exact same thing as your "class".
Only on Lighttpd
True
False
When your class extends a parent class
Only on Nginx
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782. Which of the following functions is used to format a number ?
format($number,$format_style);
num_format();
format_num();
format_number();
number_format();
Answer
Correct Answer:
number_format();
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783. Which of the following will return TRUE?
is_numeric(M_PI)
is_null(3.14)
is_string(M_PI)
is_numeric("three point one four")
Answer
Correct Answer:
is_numeric(M_PI)
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784. $_SERVER, $_COOKIE, $_FILES, $_ENV are examples of PHP built-in variables called:
global functions
superglobals
$_GLOBALS
global arrays
Answer
Correct Answer:
superglobals
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785. Which PHP function will return an array of values from $start to $end.
range( $start, $end);
array_list( $start, $end);
list( $start, $end);
numbers( $start, $end);
Answer
Correct Answer:
range( $start, $end);
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786. Which function is used to determine whether the variable’s value is either TRUE or FALSE?
boolean()
bool()
is_boolean()
is_bool()
Answer
Correct Answer:
is_bool()
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787. The comparison $a xor $b evaluates to...
TRUE if either $a or $b is FALSE
FALSE if either $a or $b is TRUE, but not both.
TRUE if either $a or $b is TRUE, but not both.
TRUE if either $a or $b is TRUE
Answer
Correct Answer:
TRUE if either $a or $b is TRUE, but not both.
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788. If one wants to convert all double quotes (") to a backslash followed by a double quote (\") which of the following can be used?
None of these
addslashes()
htmlspecialchars()
escape_quotes()
addbackslash()
Answer
Correct Answer:
addslashes()
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789. What function creates a cookie?
cookie()
create_cookie()
set_cookie()
setcookie()
establishcookie()
Answer
Correct Answer:
setcookie()
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790. Which function removes the first element from an array, and returns the value of the removed element?
array_flip()
array_shift()
array_compare()
array_pop()
Answer
Correct Answer:
array_shift()
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791. How can we set the default time zone using PHP?
date_default_timezone_set(timezone_identifier);
default_timezone(timezone_identifier);
timezone_set(timezone_identifier);
Answer
Correct Answer:
date_default_timezone_set(timezone_identifier);
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792. What function sets the default timezone used by all date and time functions in a script?
date_default_timezone_set('Region');
default_timezone_set('Region');
date_set('Region');
timezone_set('Region');
date_default_set('Region');
Answer
Correct Answer:
date_default_timezone_set('Region');
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793. What is the result of casting the integer 1 to an array: (array) 1
A numerically indexed array with one element who's value is 1
An associative array with a key of 1 and a value of 1
Casting an integer to an array has no effect
An associative array with a key of 1 and a value of NULL
Answer
Correct Answer:
A numerically indexed array with one element who's value is 1
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794. What is default session time in PHP?
1800 seconds or 30 minutes.
900 seconds or 15 minutes.
1440 seconds or 24 minutes.
infinity
3600 seconds or 60 minutes.
Answer
Correct Answer:
1440 seconds or 24 minutes.
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795. The following code does what?
reads the entire file, "my_file.txt" into an array
opens the file, "my_file.txt" for reading only
opens the file, “my_file.txt” for reading and writing
Answer
Correct Answer:
opens the file, “my_file.txt” for reading and writing
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796. What is input sanitization?
Removing or cleaning potentially malicious user input.
All of these
Converting input into a format that PHP supports.
The automatic process that creates the $_GET, and $_POST superglobals.
Answer
Correct Answer:
Removing or cleaning potentially malicious user input.
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797. Which PHP functions generate random numbers following algorithms known as Mersenne Twister?
mt() and smt()
mt_rand() and mt_srand()
rand() and srand()
mt_alg() and mt_salg()
Answer
Correct Answer:
mt_rand() and mt_srand()
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798. Which methods are available in PHP to read a remote file?
All of these
curl_exec()
file_get_contents()
fopen()
Answer
Correct Answer:
All of these
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799. When using php cli how can you return the same info as phpinfo()
php -c 'phpinfo();'
php -I
php -i
php -a
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800. What does the return code E_ERROR indicate?
Fatal run-time error
Compile-time parse error
Run-time notice
User-generated error message
Answer
Correct Answer:
Fatal run-time error
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801. What function can you use to create your own streams using the PHP stream wrappers and register them within PHP?
wrapper_register
stream_wrapper_reg
stream_wrapper_register
Answer
Correct Answer:
stream_wrapper_register
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802. dirname(__FILE__) will return what?
the same thing as $_SERVER['DOCUMENT_ROOT']
The directory in which the currently invoked file is located
The URL of the file it's placed in
The relative location of the server root
the current directory
Answer
Correct Answer:
The directory in which the currently invoked file is located
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803. Which character is used to separate namespaces in PHP?
Period(.)
Arrow(->)
Backslash (\)
Double colon (::)
Answer
Correct Answer:
Backslash (\)
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804. Which of the following string delimiting methods is known as the heredoc syntax?
delimited by <<< identifier
All of above
delimited by single quote
delimited by double quote
Answer
Correct Answer:
delimited by <<< identifier
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805. Variable $a has not been declared. With error reporting turned off, what is the result of: $a[1][2]=3;?
Syntax error
A multi-level array structure is created with 3 as a value.
Error: Undeclared variable $a
Error: Uninitialized array $a[1]
Answer
Correct Answer:
A multi-level array structure is created with 3 as a value.
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806. What do anonymous functions do in PHP?
provide functions which run at the end of a script's execution
None of these
allow the creation of global functions
allow the creation of functions with no name
Answer
Correct Answer:
allow the creation of functions with no name
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807. Which of the following functions allows you to split a string by a regular expression and put the results into an array?
join()
explode()
implode()
preg_split()
Answer
Correct Answer:
preg_split()
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808. Which function exchanges all keys with their associated values in an array?
array_flip(array)
array_reverse(array)
array_compare(array)
array_combine(array)
Answer
Correct Answer:
array_flip(array)
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809. The PHP instruction header("Content-Type: text/plain") should be sent:
after the page is loaded.
before any output is sent
in the HTML header.
inside of a function.
Answer
Correct Answer:
before any output is sent
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810. Which type of control structure should NOT be used to check for a condition being met?
switch
if /else
None of these
try / catch
Answer
Correct Answer:
try / catch
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811. Which PHP function closes an open SQLite database?
close();
All of these
SQLite3Stmt::close();
sqlite_close($dbhandle);
Answer
Correct Answer:
sqlite_close($dbhandle);
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812. Which function returns the contents of the output buffer and empties the buffer?
ob_get_clean();
ob_own_clean();
ob_ret_clean();
ob_return_clean();
Answer
Correct Answer:
ob_get_clean();
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813. What will be displayed?
int(7)
string(1) int(7)
string(1) "6"
string(1) "6" int(7)
Answer
Correct Answer:
string(1) "6" int(7)
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814. Upon completion of a file upload in PHP, the UPLOAD_ERR_OK error code is returned. What does this indicate?
The file uploaded with success.
Failed to write file to disk.
The uploaded file was only partially uploaded.
No file was uploaded.
Answer
Correct Answer:
The file uploaded with success.
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815. What variable scope would you use if you wanted a function variable which does not discard it's value when the function has completed execution?
static
None of these
function parameter
local
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816. What is the result of the following code: $array[]="value";
adds new element to the array with null as a key
creates new array of chars from the given string
adds new element at the end of the array
is illegal, will throw an fatal error
Answer
Correct Answer:
adds new element at the end of the array
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817. In PHP, the die() and exit() language constructs perform the same function.
False: They are not part of the PHP language
True
False: They produce different return codes
False: They are actually MySQL functions
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818. Self-contained collections of functions AND properties are referred to as
collections.
elements.
objects.
references.
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819. What is the default maximum execution time for a PHP script?
60 secs
20 secs
10 secs
30 secs
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820. natsort( array( "i10", "i1", "i20" ) ) = ?
false
array( "i1", "i10", "i20" )
array( "i10", "i1", "i20" )
array( "i20", "i10", "i1" )
array( "i10", "i20", "i1" )
Answer
Correct Answer:
array( "i1", "i10", "i20" )
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821. Given the statement, mysqli_connect(“happy.com”, “hot24”, “015A#”, “ABC”); “happy.com” and “hot24” respectively refer to ?
Host, username
Database, host
Password, username
Host, database
Server, client
Answer
Correct Answer:
Host, username
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822. What's the MIME type for images with correct extension "jpg"?
jpg
image/jpg
mime/.jpg
mime/jpg
image/jpeg
Answer
Correct Answer:
image/jpeg
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823. Which PHP function tells whether a file exists and is readable?
is_readable()
read()
isset()
if_exists()
Answer
Correct Answer:
is_readable()
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824. function foo($bar) { if($bar['soap'] != 'Zest') { return $bar['soap']; } } Which best describes the function foo()?
It opens an infinite loop
The parameter(s) passed to it is/are an associative array
It is an anonymous function
It is syntactically incorrect
It will return an error
Answer
Correct Answer:
The parameter(s) passed to it is/are an associative array
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825. Which of the following is the scope resolution operator in PHP?
&
.=
::
All of these
->
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826. Error reporting constants are used to adjust error reporting settings. Which of the following is NOT a valid error reporting constant?
E_CONSTANT
E_NOTICE
E_ALL
E_STRICT
E_WARNING
Answer
Correct Answer:
E_CONSTANT
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827. Which one removes a cookie from client's browser?
setcookie('mycookie', '', time()-3600);
unsetcookie('mycookie', 0, 1);
removecookie('mycookie', 0, time()-3600);
deletecookie($_COOKIE['mycookie']);
Answer
Correct Answer:
setcookie('mycookie', '', time()-3600);
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828. Which of the following functions would allow you to convert a string to an array?
to_array()
explode()
implode()
st2arr()
expand()
Answer
Correct Answer:
explode()
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829. What is returned by array_product( array( 2, 3) )?
2
3
array( array( 2 ) )
6
array( 2 )
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830. $val = ""; What will isset($val) return?
false
0
true
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831. How would you delete a cookie?
do not set an expiration
use session_destroy()
eat it warmed with milk
use cookie_destroy()
set the expiration date in the past
Answer
Correct Answer:
set the expiration date in the past
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832. Which PHP function removes the last value of an array and returns it?
array_last()
array_unshift()
array_pop()
array_shift()
Answer
Correct Answer:
array_pop()
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833. You can call a parent class' implementation of a method which is overridden by a child class using:
$this->
self::
above::
parent::
This is not possible
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834. The break statement ends execution of which of the following structures?
while
All of these
for
switch
Answer
Correct Answer:
All of these
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835. echo substr("Hello world",-4); the right output is?
world
hello
hell
orld
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836. What separates a sequence of one or more characters used to specify the boundary between separate text regions?
extended value
separater
parser
delimiter
Answer
Correct Answer:
delimiter
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837. Which PHP function or variable will return the value of current session id?
$_SESSION['ID']
curr_session_id()
$_SESSION['CURRENT_ID']
session_id()
Answer
Correct Answer:
session_id()
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838. Which of the following is not a valid key type for arrays in PHP?
integers
All of these
strings
objects
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839. Which function displays a formatted string?
print()
printf()
echo
dump()
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840. What is the difference between the include() and require() language constructs?
There is no difference.
None of these.
They handle failure differently.
They handle file paths differently.
Answer
Correct Answer:
They handle failure differently.
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841. Which PHP function checks to see if a file exists and is writable?
if_exists()
isset()
write()
is_writable()
Answer
Correct Answer:
is_writable()
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842. The PHP mail() function allows you to...
send a mail message according to the POP3 protocol directy from a script.
None of these
send a mail message according to the IMAP protocol directly from a script.
send mail messages directly from a script.
Answer
Correct Answer:
send mail messages directly from a script.
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843. In the PHP code given below, what is/are the properties?
echo “This is an example”;
class Example
public $name;
function sample()
Answer
Correct Answer:
public $name;
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844. The case expression is used as part of a PHP ____.
if statement.
switch statement.
All of these
try / catch condition.
Answer
Correct Answer:
switch statement.
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845. Which PHP function returns "true" if a value already exists in an array?
is_array()
array_key_exists()
array_found()
in_array()
array_search()
Answer
Correct Answer:
in_array()
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846. What will range('a', 'z') return?
Distance between letters 'a' and 'z' on an alphabetically ordered list
False
This function call will throw an exception
An alphabetically ordered array of letters from 'a' to 'z'
Answer
Correct Answer:
An alphabetically ordered array of letters from 'a' to 'z'
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847. What does the following output? echo (5 % 3);
1
2
None of these
15
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848. Choose the correct output.
98.8degrees
98
98.8
degrees
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849. How do you create a non-public method, which can be used in a child-class?
protected function Something() {
preserved function Something() {
private function Something() {
parent function Something() {
nonpublic function Something() {
Answer
Correct Answer:
protected function Something() {
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850. Which statement would produce the output, "I love summer"?
All of these
Answer
Correct Answer:
All of these
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851. Which rule determines which sections of script are able to access which variables?
Parameters
Variable Scope
Functions
Arrays
Answer
Correct Answer:
Variable Scope
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852. What will be the result of the following: echo ucwords(strtoupper('aAaA bBbB'));
aAAA bBBB
aaaa bbbb
Aaaa Bbbb
aAaA bBbB
AAAA BBBB
Answer
Correct Answer:
AAAA BBBB
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853. Which function sets the internal pointer of an array back to its first element?
reset()
current()
loop()
next()
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854. Choose the word(s) that describe the fundamental style of programming for PHP.
imperative
object-oriented
procedural
All of these
Answer
Correct Answer:
All of these
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855. Is $_SERVER['PHP_SELF'] subject to injection vulnerabilities?
No, it's safe. It can only contain paths and filenames specified by the web master.
Yes, it's vulnerable. On most servers PATH_INFO is supported, which is part of PHP_SELF
Answer
Correct Answer:
Yes, it's vulnerable. On most servers PATH_INFO is supported, which is part of PHP_SELF
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856. Which function advances the internal array pointer of an array?
next()
move()
current()
skip()
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857. Which variable name is incorrect?
$_1FIRST
None of the above.
$1first
$first
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858. What function converts newlines to HTML line breaks in a string?
html_line_break()
nl2br()
newlines()
line_break()
insert_br()
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859. The only code construct allowed before a namespace declaration is the declare statement, for defining encoding of a source file
true
false
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860. Which of the following is false?
PHP can be deployed on most web servers.
PHP can be used to develop web applications.
PHP code is embedded into HTML source code.
PHP applications must be compiled.
Answer
Correct Answer:
PHP applications must be compiled.
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861. The web server sets a cookie on the web client by sending the name/value pair as part of
a session.
an HTTP header.
a database object.
java protocol.
Answer
Correct Answer:
an HTTP header.
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862. Choose the output of the following code. Assume that today is 2009-3-19:2:45:32 pm
Mar 19, 2009
03 19, 2009
Mar 19, 09
March 19, 2009
Answer
Correct Answer:
March 19, 2009
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863. In this example code, $result = print_r($a); $a is the
property
function
argument
element
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864. In the date() function what does the "m" format character do?
Insert month as Jan through Dec
Insert minute as 0 through 59
Insert month as 01 through 12
Insert minute as 00 through 59
Answer
Correct Answer:
Insert month as 01 through 12
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865. In PHP, you can use both single quotes and double quotes ( " " ) for strings.
False
True, but double quotes will expand PHP variables and escape sequences inside it.
True, they are the same thing.
Answer
Correct Answer:
True, but double quotes will expand PHP variables and escape sequences inside it.
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866. After a file is successfully opened in PHP, how do you retrieve a line from the file?
!feof
line_number
fgets
fpointer
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867. True or False: There is no difference in using the following 2 examples: echo('string'); echo 'string';
It depends on the server environment
False
True
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868. What is the scope of a PHP constant? Declared using define()
local
None of these
global
variable
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869. What PHP function counts elements in an array, or properties in an object?
add()
digits()
count()
array_count()
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870. What does the following PHP statement create? define("FIRST-NAME","John");
special characters
a variable
a constant
a definition
Answer
Correct Answer:
a constant
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871. Can PHP be run on a Windows IIS server?
false
Only if installed on a separate partition.
true
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872. Which PHP function will combine two arrays?
array_sum()
array_merge()
array_combine()
array_push()
Answer
Correct Answer:
array_merge()
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873. What is output by the following: $c = 1; ++$c; echo $c++;
4
1
3
2
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874. Which function converts a string to all uppercase characters?
uppercase()
ucase()
upper()
strtoupper()
Answer
Correct Answer:
strtoupper()
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875. Include files can have which file extensions?
.txt
.inc
Any of these
.php
Answer
Correct Answer:
Any of these
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876. What is the value of $var when the following line is executed in a PHP function? unset($var);
" "
Neither of these.
NULL
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877. The setcookie() function must appear _____ the <html> tag.
after
before
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878. Which of the following is valid PHP syntax?
if($a == 5) then echo "a = 5"; endif
if($a == 5) echo "a = 5"; endif
None of these
if($a == 5) echo "a = 5";
Answer
Correct Answer:
if($a == 5) echo "a = 5";
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879. Variables in PHP are represented by a dollar sign followed by the name of the variable. A valid name must NEVER start with a...
underscore.
Any of these.
letter.
number.
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880. What function is used to check if a variable is an array?
array()
is_array()
array_exists()
in_array()
array_check()
Answer
Correct Answer:
is_array()
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881. The FTP functions can be used to perform the following actions on file servers:
All of these
None of these.
Open a connection
Upload files
Login to a connection
Answer
Correct Answer:
All of these
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882. How can we increase the execution time of a PHP script from setting php.ini?
By setting script_execution_time
By setting max_script_time
By setting max_script_execution_time
By setting max_execution_time
Answer
Correct Answer:
By setting max_execution_time
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883. PHP requires instructions to be terminated at the end of each statement with a
;
</php>
}
?>
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884. To suppress error messages to the user, preface the PHP statement with
%
#
!
@
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885. The PHP operator, %, which returns the remainder of an equation is called the:
remainder
modulus
floating integer
pre-increment
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886. Which following function is used to count total number of characters in a string?
str_count();
count();
total_chars();
num_chars();
strlen();
Answer
Correct Answer:
strlen();
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887. What will be the result of this code:
Yes
No
PHP ERROR
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888. If you would like to check to see if a PHP variable has data, which of the following language constructs would you use?
none().
empty().
null().
data().
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889. Which of the following statement best describes: $panther = new Animal();
Access modifier
Constructor
Invocation of a function
Instantiation of a class
Declaration of a string
Answer
Correct Answer:
Instantiation of a class
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890. Which is an example of a statement using a combined operator?
$a != $b
$a++
$a += $b
$a--
$a == $b
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891. Which statement correctly declares a float variable in PHP?
All of these
$a = 1.234;
$a = 4.5e3;
$a = 7E-10;
Answer
Correct Answer:
All of these
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892. Which function allows you to split a string into an array of substrings by a string delimiter?
split("", string)
str(" ", $str)
explode(" ", $str)
None of these
Answer
Correct Answer:
explode(" ", $str)
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893. Which PHP function returns an array with elements in reverse order?
array_descend()
reverse()
array_reverse()
None of these
Answer
Correct Answer:
array_reverse()
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894. What will it output?
4
2
A error message.
3
1
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895. Which of the following is the recommended standard (short_opentag=Off) for opening and closing a PHP code block?
'' to close
'' to close
'' to close
'<%php' to open and '%>' to close
'' to close
Answer
Correct Answer:
'' to close
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896. Which type is not supported by PHP?
array
time
boolean
integer
string
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897. Which PHP function randomizes the order of the elements in an array?
mix()
reverse()
combine()
shuffle()
Answer
Correct Answer:
shuffle()
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898. Which function can be used to convert "ff" to 255?
hexdec()
bindec()
octdec()
dechex()
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899. An array in PHP is:
a data file.
None of these
a series of variables.
a collection of key value pairs.
Answer
Correct Answer:
a collection of key value pairs.
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900. What does the acronym LAMP stand for?
Linux And MySQL PHP
Linux Application in MySQL PHP
Linux Apache Monitoring Program
Linux Apache MySQL PHP (or Perl/Python)
Answer
Correct Answer:
Linux Apache MySQL PHP (or Perl/Python)
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901. What is the output of flowing code?
Volvo Toyota BMW
BMW Toyota Volvo
Volvo BMW Toyota
Answer
Correct Answer:
BMW Toyota Volvo
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902. Which PHP math function would you use to round a number upwards to the nearest integer?
top()
ceil()
up()
max()
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903. Which of the following is NOT used to specify PHP comments?
#
/* */
//
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904. In PHP, which statement is used to retrieve browser properties?
$_SERVER['PHP_SELF']
$_SERVER['HTTP_USER_AGENT'];
$_SERVER['HTTP_HOST']
$_SERVER['SERVER_NAME']
Answer
Correct Answer:
$_SERVER['HTTP_USER_AGENT'];
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905. PHP requires that instruction statements be terminated with a:
period
underscore
curly brackets
semicolon
Answer
Correct Answer:
semicolon
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906. $_x = 2; $_x += 4;
-2
4
6
Error
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907. Which control statement indicates a block of code to be repeated a number of times?
switch
for
include
if
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908. Which statement is true regarding the XML support in PHP?
All of these
XML validation is not provided
XML parsing is provided
the PHP XML extension implements xpath
Answer
Correct Answer:
All of these
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909. Select the type of variable scope which is not supported by PHP:
Function parameters
Local variables
Global variables
Hidden variables
Answer
Correct Answer:
Hidden variables
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910. PHP supports which of the following features?
All of these
include files
mathematical functions
associative arrays
Answer
Correct Answer:
All of these
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911. All variables in PHP start with which symbol?
@
%
$
!
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912. The function mysql_connect( ) takes following parameter(s):
password
username
server
All of these
Answer
Correct Answer:
All of these
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913. The PHP language can be used on the following operating systems:
Mac OS X
Windows NT
Linux
All of these
Answer
Correct Answer:
All of these
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914. Which is a valid loop method in PHP?
While
All of these
Do
For
Answer
Correct Answer:
All of these
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915. Which construct includes an external PHP file?
require_once
include
require
All of these
Answer
Correct Answer:
All of these
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916. How do you write "Hello World" in PHP
Time's Up!
document.print("Hello World");
"Hello World";
out << "Hello World";
echo "Hello World";
Answer
Correct Answer:
echo "Hello World";
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917. What types of arrays are supported in PHP?
Associative
Multi-dimensional
All of these
Numeric
Answer
Correct Answer:
All of these
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918. Which function will generate random integers?
rand()
rad2deg()
search()
find()
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919. In PHP, how would you determine if a variable is set?
isinit()
isset()
unset()
combined()
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920. Which function checks for a specific PHP data type?
is_numeric()
is_float()
is_int()
All of these
Answer
Correct Answer:
All of these
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921. If the allow_url_fopen configuration setting is enabled, which of the following functions will be able to open remote urls?
include()
require_once()
require()
All of these
Answer
Correct Answer:
All of these
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922. Which variable is used to collect values of a form sent via the HTTP POST method?
$_POST
$POST
POST
_POST_
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923. Which of the following is a valid PHP function modifier?
final
private
All of these
public
Answer
Correct Answer:
All of these
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924. Choose the statement which produces this output: This is an example.
<?php echo "This is an example."; ?>
<script language="php"> print "This is an example.";</script>
<p="This is an example."; ?>
<? "This is an example."; ?>
Answer
Correct Answer:
<?php echo "This is an example."; ?>
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925. Which of the following PHP language constructs allows you to combine code from one file into another?
All of the these
require_once()
require()
include()
Answer
Correct Answer:
All of the these
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926. Variables in PHP start with a
ampersand(&)
underscore(_)
dollar sign($)
dot(.)
Answer
Correct Answer:
dollar sign($)
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927. What are int, float, string and boolean examples of in PHP?
data types
classes
integers
pointers
Answer
Correct Answer:
data types
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928. Which variable is not predefined by PHP?
$_POST
$_FILES
$_GET
$_ASK
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929. One way to output a string in PHP is:
output()
display()
echo()
str()
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930. Which PHP function sorts an array?
array_alpha()
array_walk()
combine()
sort()
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931. In PHP, functions using global variables must declare the variables by using
the GLOBAL keyword.
the STATIC keyword.
the LOCAL keyword.
Answer
Correct Answer:
the GLOBAL keyword.
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932. An example of a PHP string is:
&&
10
"test"
$a
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933. How do you combine multiple arrays into one single PHP array?
array_pop()
array_compare()
array_merge()
array_shift()
Answer
Correct Answer:
array_merge()
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934. CakePHP, Zend, and CodeIgniter are popular _________ used on many PHP servers.
unit testing packages
image processing libraries
cacheing tools
development frameworks
version control software
Answer
Correct Answer:
development frameworks
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935. Why is PHP more widely used than ASP?
PHP is a free code to use on servers
It works on more browsers
Its cooler
Answer
Correct Answer:
PHP is a free code to use on servers
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936. The logical operator OR is similar to:
||
&&
!==
!=
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937. Which operator is used to concatenate strings in PHP?
dot (.)
plus (+)
ampersand (&)
logical and (and)
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938. Which PHP function completely destroys all data relevant to the session?
destroy();
session_close();
session_end();
session_destroy();
Answer
Correct Answer:
session_destroy();
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939. What should you do in advance, to get and set session variable
sessionstart_func()
sessionstart()
session_start()
session_start_func()
_session_start()
Answer
Correct Answer:
session_start()
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940. Which of the following function libraries are supported in PHP?
All of these
MySQL
JSON
GD
Answer
Correct Answer:
All of these
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941. Which function creates a directory on the FTP server?
ftp_makekdir()
ftp_mkdir()
ftp_makedirectory()
ftp_mkdirectory()
Answer
Correct Answer:
ftp_mkdir()
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942. How do you add a multi-line comment in PHP?
<!-- This is a comment -->
*\ This is a comment \*
<comment> This is a comment </comment>
/* This is a comment */
Answer
Correct Answer:
/* This is a comment */
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943. The statement header("Location: http://www.somesite.com"); will
redirects the browser to www.somesite.com.
displays the header of somesite.com.
displays the IP address of somesite.com.
creates a hyperlink.
Answer
Correct Answer:
redirects the browser to www.somesite.com.
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944. Which statement allows you to add new records to a MySQL database table?
PUT INTO
All of these
INSERT INTO
ADD INTO
Answer
Correct Answer:
INSERT INTO
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945. Placing ++ in front of variable:
preincrements the variable by one
will cause a syntax error
creates a fatal error
will print as a string
Answer
Correct Answer:
preincrements the variable by one
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946. Which function is used to perform a regular expression match in PHP?
match()
parse()
preg_match()
combine()
Answer
Correct Answer:
preg_match()
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947. A string literal in PHP can be specified in the following way(s):
All of these
'this is a string'
"this is a string"
<<<EOT this is a string EOT;
Answer
Correct Answer:
All of these
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948. Which PHP language construct sends output to a browser window?
return
output
echo
display
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949. How is the following statement interpreted in PHP? $i = 1;
$i is assigned a value of 1
$i is assigned a value of "one"
$i is being compared to 1
None of these
Answer
Correct Answer:
$i is assigned a value of 1
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950. Which of the following HTML form submission methods is suitable when you need to send large amounts of form data?
Post
Get
Email
Send
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951. Which of the following returns information passed via HTTP forms?
$_REQUEST
$_POST
$_GET
All of these
Answer
Correct Answer:
All of these
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952. Which of the following variables is expected to contain information about the user's browser?
$_SERVER['PHP_SELF']
$_SERVER['SERVER_NAME']
$_SERVER['HTTP_VARIANT']
$_SERVER['HTTP_USER_AGENT'];
Answer
Correct Answer:
$_SERVER['HTTP_USER_AGENT'];
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953. What do you need to call in order for your session variables to work?
$_SESSION_BEGIN
session_start()
session_begin()
session()
ob_start()
Answer
Correct Answer:
session_start()
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954. Which PHP function would you use to display the value of an array in a readable format?
print()
return()
print_r()
display()
Answer
Correct Answer:
print_r()
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955. What kind of error causes the termination of the script?
Fatal Errors
None of them
Notices
Warnings
Answer
Correct Answer:
Fatal Errors
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956. How do you define a constant in PHP?
define("CONSTANT", "Hello world.");
constant("CONSTANT", "Hello world.");
defined("CONSTANT", "Hello world.");
eval("CONSTANT", "Hello world.");
Answer
Correct Answer:
define("CONSTANT", "Hello world.");
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957. Which function gives you the current PHP version information?
version_compare()
phpversion()
version()
phpcredits()
Answer
Correct Answer:
phpversion()
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958. An example of a float in PHP is:
All of these
12.678
1.2E3
7E-10
Answer
Correct Answer:
All of these
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959. Which of the following checks if a value exists in an array?
PHP does not provide any inbuilt way of doing this.
exists
in_array
exists_list
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960. Which PHP function would you use to display information about variables in a simple, readable format?
dump()
infp()
display()
var_dump()
Answer
Correct Answer:
var_dump()
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961. Which PHP math function would you use to generate a random integer?
next()
rand()
random()
int()
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962. The practice of combining strings and variables into one string is called:
combination
connecting
joining
concatenation
Answer
Correct Answer:
concatenation
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963. Which of the following are PHP comparison operators?
===
All of these
!=
==
Answer
Correct Answer:
All of these
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964. $var = (10 % 2 == 0) ? true:false; What is the output of $var?
false
true
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965. Which PHP function opens a file for reading only?
fopen("c:\\test\\time.txt" , "w");
open("c:\\test\\time.txt");
fopenr("c:\\test\\time.txt" , "r");
fopen("c:\\test\\time.txt" , "r");
Answer
Correct Answer:
fopen("c:\\test\\time.txt" , "r");
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966. Which of the following are examples of PHP comments?
Both // and /* */
/* */
//
None of these
Answer
Correct Answer:
Both // and /* */
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967. Which of these does not represent a single, valid PHP variable
$my-Var
$my_Var
$myVar
$myvar
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968. Which statements start a session and end a session?
session_start(); unset_session();
begin_session(); end_session();
start_session(); session_explode();
session_start(); session_destroy();
start_session(); end_session();
Answer
Correct Answer:
session_start(); session_destroy();
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969. Which function tests a string for an exact match of the argument?
preg_match()
regex()
test()
str()
Answer
Correct Answer:
preg_match()
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970. Which construct is typically used for exception handling in PHP?
modify()
try / catch
E_STRICT
session();
Answer
Correct Answer:
try / catch
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971. To modify the default PHP settings such as whether to accept the short form open tag (<?), you need to change the
htaccess file.
php.ini file.
php.inc file.
machine.config file.
Answer
Correct Answer:
php.ini file.
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972. Which PHP function finds the position of the last occurrence of a substring within a string?
haystack()
strrpos()
split()
pos()
Answer
Correct Answer:
strrpos()
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973. Which of the following variables does PHP make automatically available to you?
$_DIR
$_UPLOADED_FILES
$_SERVER
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974. Choose the correct value for $i. $i = 2; $i++;
3
2
5
4
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975. What is meant by nl2br()?
Inserts HTML line breaks (<BR />) before all newlines in a string.
Inserts HTML line breaks (<P />) before all newlines in a string.
Inserts HTML line breaks (<NL/>) before all newlines in a string.
Inserts HTML line breaks (<HR />) before all newlines in a string.
Answer
Correct Answer:
Inserts HTML line breaks (<BR />) before all newlines in a string.
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976. Which of the following is NOT a command for sending output to the standard output?
print
send
echo
printf
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977. In the following PHP script, $arr = array(1,2,3);, 1, 2, and 3 are the array
subscript
index
values
keys
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978. Which PHP function returns part of a string?
ctrl alt delete
All of these
substr()
strpos()
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979. How to call a method from within a class?
public my_function();
private my_function();
$this->my_function();
$this.my_function();
$this( my_function() );
Answer
Correct Answer:
$this->my_function();
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980. Which PHP math function would you use to return the number with the lowest value of two specified numbers?
ceil()
max()
min()
bottom()
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981. Which statement returns the number of characters in the string variable $a?
count($a)
strlen($a)
len($a)
chr($a)
sizeof($a)
Answer
Correct Answer:
strlen($a)
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982. True or False : list — Assign variables as if they were an array
Yes
No
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983. If a string is enclosed in double-quotes, PHP will interpret more escape sequences for special characters such as
\r
\n
\"
All of these
Answer
Correct Answer:
All of these
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984. Which of these assigns a value of type string to variable $x?
$x[] = "true";
$x = "true";
$x = true;
Answer
Correct Answer:
$x = "true";
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985. An Object is a/an ___ of a class
Prototype
Type
Object
Instance
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986. Can PHP scripts be embedded directly into XHTML documents?
No
Yes
Depends on the Operating System
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987. Which variable contains values of $_GET, $_POST, and $_COOKIE?
$_ALL
$_REQUEST
$_MERGE
$_INCLUDE
Answer
Correct Answer:
$_REQUEST
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988. How do you inherit the methods from BaseClass in MyClass?
class MyClass parent BaseClass {
class MyClass extends BaseClass {
class MyClass inherits BaseClass {
class MyClass includes BaseClass {
class MyClass using BaseClass {
Answer
Correct Answer:
class MyClass extends BaseClass {
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989. What is the right way to set a value on an object stdClass?
$variable.value = 'value';
$variable.['value'] = 'value';
$variable->value = 'value';
$variable['value'] = 'value';
$variable[value] = 'value';
Answer
Correct Answer:
$variable->value = 'value';
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990. Which of the following is a string operator?
plus(+)
dot(.)
decrement(--)
minus(-)
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991. Which function returns information on the PHP configuration you are using?
phpAll();
phpNotice();
phpinfo();
phpsearch();
phpconfig();
Answer
Correct Answer:
phpinfo();
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992. How do you specify a string literal in PHP?
All of these
"Hello there"
<<<EOD Hello there EOD;
'Hello there'
Answer
Correct Answer:
All of these
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993. mysqli_num_rows() function is used to:
Count number of rows in result of MySql Query.
Get all rows contain numbers.
Get all columns with numeric data.
Count number of columns in MySql Table.
Count number of characters in single row of MySql Query result.
Answer
Correct Answer:
Count number of rows in result of MySql Query.
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994. What is the official website of PHP
php.org
php.net
php.com
php.edu
php.us
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995. Which of the following displays the browser properties using PHP?
$_SERVER['BROWSER_DETAIL']
$_SERVER['HTTP_AGENT']
$_SERVER['BROWSER_NAME']
$_SERVER['HTTP_USER_AGENT']
Answer
Correct Answer:
$_SERVER['HTTP_USER_AGENT']
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996. What is the result of the following code?
hELLO
HELLO
hellO
None of these
hello
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997. Which function allows you to specify a start position of a string and length arguments to retrieve part of a string?
substr()
chunk_split()
parse_str()
str()
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998. Which PHP function creates a directory on an FTP server?
ftp_chdir()
ftp_create_dir()
ftp_mkdir()
ftp_make_dir()
Answer
Correct Answer:
ftp_mkdir()
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999. Which function returns one or more randomly selected keys from an array?
array_rshuffle()
array_rchunk()
array_rand_pop()
array_rand()
array_diff_key()
Answer
Correct Answer:
array_rand()
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1000. How do you perform a strict comparison of variables for type and value?
$a = $b
$a === $b
None of these
$a == $b
Answer
Correct Answer:
$a === $b
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1001. What type of operator is && in PHP?
arithmetic operator
comparison operator
assignment operator
logical operator
Answer
Correct Answer:
logical operator
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1002. True or false? We can include ("sandy.php") two times in one PHP page "my.php".
False
True
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1003. Given, the following: What is the output?
retail computer computer
retail advertising computer
retail retail retail
retail retail computer
Answer
Correct Answer:
retail advertising computer
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1004. HTTP cookies can be used to:
identify a user.
create client side scripts.
validate input fields.
check for SQL injections.
Answer
Correct Answer:
identify a user.
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1005. Which statement is true about PHP constants?
They are case-sensitive by default.
They cannot be changed.
They cannot contain an array.
All of these.
Answer
Correct Answer:
All of these.
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1006. Which PHP function creates an array by using one array for keys and another for its values?
array_combine()
combine()
array2()
$array()
Answer
Correct Answer:
array_combine()
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1007. What function converts 'Hatfields & McCoys' into 'Hatfields & McCoys'?
htmlentities()
ampersand()
transform()
convert()
Answer
Correct Answer:
htmlentities()
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1008. To output information about a variable use the function
print_var()
display_var()
output()
var_dump()
Answer
Correct Answer:
var_dump()
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1009. Which of the following language constructs is used to terminate a running script?
kill()
break()
exit()
halt()
eval()
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1010. Which PHP extension provides an abstract method for database retrieval?
TRC
STMP
PDO
POP
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1011. What type of statements tell your PHP script to execute a section of code only if certain criteria are met?
Function
Class
Exception
Conditional
Answer
Correct Answer:
Conditional
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1012. What is the output?
syntax error
falsefalse
true
false
None of the these
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1013. Which datatypes are treated as arrays in some cases?
integer
double
strings
float
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1014. What is output to the screen when executing code: $> php -r
aa
PHP Parse error
truea
a
Answer
Correct Answer:
PHP Parse error
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1015. Which function removes all HTML and PHP tags?
remove_html_php()
tag_remove()
remove_tags()
strip_tags()
Answer
Correct Answer:
strip_tags()
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1016. Which function allows you to delete a file?
remove
clearfile
delete
unlink
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1017. What is the output from this example? $str = "My name is O\'Connor."; echo stripslashes($str);
My name is OConnor.
My name is O'Connor.
None of these
My name is O\'Connor.
Answer
Correct Answer:
My name is O'Connor.
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1018. True or False? Arrays in PHP can only hold the same data type.
True
False
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1019. The ......... function parses an English textual date or time into a Unix timestamp
str_to_time()
strtodate()
strtotime()
stroftime()
Answer
Correct Answer:
strtotime()
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1020. What is a large binary data object called in PHP?
lib
blob
bin
blurb
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1021. Which of the following outputs a formatted string?
printf("Hello %s", $name);
print("Hello %s", $name);
echo("Hello %s", $name);
output("Hello %s", $name);
Answer
Correct Answer:
printf("Hello %s", $name);
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1022. OCI8, PostgreSQL, and SQLSRV are all examples of
queries available in PHP.
database extensions available in PHP.
form extensions available in PHP
All of these
Answer
Correct Answer:
database extensions available in PHP.
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1023. What is the result of the following code?
Array
0
2
3
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1024. Which of the following functions changes directory on ftp-connection?
ftp_chmod()
ftp_login()
ftp_connect()
ftp_chdir()
ftp_mkdir()
Answer
Correct Answer:
ftp_chdir()
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1025. How do I typecast a variable to boolean?
$var = (bool)$var;
$var = ($var == $var);
Both are valid statements.
It's not possible to typecast variables like this.
Answer
Correct Answer:
$var = (bool)$var;
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1026. Which PHP function sorts an array and maintains index association?
awalk()
asort()
sort()
array_alpha()
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1027. What function can be used to help prevent MySQL injection?
mysql_real_escape_string()
mysql_escape()
escape_mysql_string()
None of the above
mysqlescapethisstring()
Answer
Correct Answer:
mysql_real_escape_string()
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1028. Which function checks for the existence of a particular key?
isset()
array_key_exists()
element()
for_each()
Answer
Correct Answer:
array_key_exists()
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1029. A fatal run-time error would be caught by
E_ERROR
E_WARNING
ERROR
E_NOTICE
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1030. What is a collection of characters that is treated as one entity called?
Function
Element
Parameters
String
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1031. Which of the following is NOT a function of PHP session support?
session_pw
session_destroy
session_decode
session_id
Answer
Correct Answer:
session_pw
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1032. What is the output of the following code?
fastest faster
fastest fastest
faster faster
faster fastest
Answer
Correct Answer:
faster fastest
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1033. What is the GD Library?
It is a library that gives the PHP the capability to access and create virtual domains. - (Generated Domain)
It is a library that gives the PHP the capability to create and manipulate image files. - (Gif Draw)
it's add a dozen of special new $_GLOBAL variables that gives principally informations on the user (localization, common social media cookies, etc...) - (Global iDentification)
Answer
Correct Answer:
It is a library that gives the PHP the capability to create and manipulate image files. - (Gif Draw)
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1034. Which PHP function can be used to generate a unique ID for members of your site?
mt_random()
unpack()
php_create_user()
uniqid()
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1035. How would you create a numeric array from the following string that did not include "-test" and where each digit had its own array key? $str = '6.1.4.2.6-test';
$arr = implode('-', $str); $arr = implode('.', $arr[0]);
You can't
$arr = explode('-', $str); $arr = explode('.', $arr[0]);
$arr = str_replace('-', '', $str);
Answer
Correct Answer:
$arr = explode('-', $str); $arr = explode('.', $arr[0]);
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1036. The following code will produce: var_dump(5 === "5");
bool(false)
int(5)
bool(true)
string(1) "5"
Answer
Correct Answer:
bool(false)
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1037. Which type of array allows you to use textual keys so that array indices can be more descriptive?
Key
Textual
Associative
All of these
Answer
Correct Answer:
Associative
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1038. What is the value of $start after exiting the for loop?
2
4
3
5
1
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1039. The interpreter executes one PHP command which ends in a semi-colon. This is referred to as a
PHP statement.
All of these
PHP array.
PHP function.
Answer
Correct Answer:
PHP statement.
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1040. Choose the string for which the POSIX regular expression ^[A-Za-z]$ matches.
2I
67
P
&
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1041. Which of the following is not a valid PHP variable declaration?
$aVaR
${“MyVar”}
$10_var
$_10
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1042. Atleast how many abstract methods must an abstract class contain?
Five
One
Two
More than two
None
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1043. Which is a valid character for starting a PHP function name?
All of these
dollar sign($)
percent(%)
underscore(_)
Answer
Correct Answer:
underscore(_)
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1044. Given the following code, the Atom class can access which variables? class Flash { public $fast; private $superSpeed; private $ultraSonic; protected $warp; } class Atom extends Flash { }
$fast, $warp
$fast, $superSpeed, $ultraSonic
$fast
$superSpeed, $ultraSonic
$fast, $superSpeed, $ultraSonic, $warp
Answer
Correct Answer:
$fast, $warp
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1045. In this example code, $result = print_r ($a); $result is the
expression.
variable.
property.
argument.
Answer
Correct Answer:
variable.
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1046. Which statement will NOT combine strings $s1 and $s2 into a single string?
implode(' ',array($s1,$s2))
"{$s1} {$s2}"
$s1.$s2
$s1 + $s2
Answer
Correct Answer:
$s1 + $s2
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1047. What is one of the difference between the use of single quotes and double quotes in PHP syntax?
single quoted strings cannot contain line breaks
variables names will not be expanded in double quotes
variable names will be expanded in double quotes
double quoted strings cannot contain line breaks
Answer
Correct Answer:
variable names will be expanded in double quotes
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1048. Which PHP function checks to see if HTTP headers have been sent?
headers_sent()
sent()
http_response_code()
header()
Answer
Correct Answer:
headers_sent()
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1049. To access functions of an instantiated class, you use the following:
$class::function()
class->function()
class.function()
$class->function()
class::function
Answer
Correct Answer:
$class->function()
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1050. $table = array("old_value"); foreach($table as $row) { $row="new_value"; } echo $table[0]; will produce:
"new_value"
"old_value"
Fatal error, as the variable used in foreach is read-only
Answer
Correct Answer:
"old_value"
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1051. How can you call this function? $greet = function($name) { printf("Hello %s\r\n", $name); };
$greet $World;
PHP does not support this syntax.
$greet('World');
Answer
Correct Answer:
$greet('World');
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1052. The PHP function which capitalizes the first letter of each word in a string
strtoupper()
ucfirst()
caps()
ucwords()
Answer
Correct Answer:
ucwords()
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1053. Which statement opens a file for writing, to append data at the end of its content ?
fopen("myFile", "wa")
fopen("myFile", "a")
fopen("myFile", "r+")
fopen("myFile", "w")
Answer
Correct Answer:
fopen("myFile", "a")
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1054. What will be the output for the following code? $values = array(0, NULL, FALSE); foreach($values as $key => $value) { echo isset($values[$key]) ? "TRUE " : "FALSE "; }
FALSE FALSE FALSE
TRUE FALSE FALSE
TRUE TRUE TRUE
fatal error when using isset on an array
TRUE FALSE TRUE
Answer
Correct Answer:
TRUE FALSE TRUE
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1055. What is the recommendation regarding PHP closing tags in a document?
Only use the closing tag when short tags are enabled.
End all PHP files with '?>'.
Omit the closing tag when the file contains only PHP code.
There is no recommendation.
Answer
Correct Answer:
Omit the closing tag when the file contains only PHP code.
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1056. How do single quotes interpret strings in PHP?
literally except for variables which are expanded
literally
escape sequences are interpreted
None of these
Answer
Correct Answer:
literally
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1057. What function allows you to print a backtrace?
backtrace_print
print_backtrace
backtrace
debug_backtrace_print
debug_print_backtrace
Answer
Correct Answer:
debug_print_backtrace
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1058. What are Traits in PHP?
Traits are class interfaces.
Traits are all of these things.
Traits allow code reuse without direct inheritance.
Traits allow multiple inheritance for classes.
Answer
Correct Answer:
Traits allow code reuse without direct inheritance.
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1059. What will be the value of $result? 1, 'val2' => array('val21' => 21, 'val22' => 22), 'val3' => 3 ); $result = array_key_exists('val22', $myArr); ?>
false
" "
true
an error
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