1. On compilation. the following PHP 7.1 code was supposed to produce the output 24. the code lines with errors. 1. 2. 3. class example 4- { 5. public $foo; G. 7. public function__construct()[ 8. $this->function = foo()[ 9. return 24; 10. }; 11. } 12. } 13. $exp = new example(]: 14. echo ($cxp->function)(). PHP_EOL;

2. Which of the following options are used for specifying a string literal in PHP 7.1? i) Single quotes ii) Double quotes iii) heredoc syntax iv) now doc syntax

3. Which is correct about the following PHP 7.1 code snippet? $x = 2.98765431; $y = 2.98765430; $epsilon = 0.00001; if(abs($x-$y) < $epsilon) { echo 'true'; } ?>

4. Correct syntax of the session_gc() function, which is used to perform session data garbage collection?

5. Output of the PHP 7.1 code? $example = array( 5 => 'e', '5' => 'f', 5.5 => 'g', true => 'i', ); var_dump($example); ?>

6. Output of PHP code? echo $x = 'D7'; for ($i=0; $i<5; $i++) { echo ++$x . PHP_EOL; } ?> '>

7. Find the output of the following PHP 7.1 code. example.php $x =

8. Correct syntax of the PHP 7.1 magic method, __Sleep()?

9. Which is correct about the following PHP 7.1 code? function example() { static $cnt = 0; $cnt++; echo $cnt; if ($cnt < 5) { example(); } $cnt--; } ?>

10. In relation to PHP 7.1 throwable interface, which option is used for getting a string representation of a thrown object?

11. Carefully analyze the following program. 1. 2.class example 3.{ 4.static function check() 5.{ 6.echo "Check\n"; 7.} 8.function test() 9.{ 10.echo "Test\n"; 11.} 12.} 13.$f = new array("example", "check"); исправил:) $f = array( new example, "check"); 14.$f(); 15.$f = array(new example, test); исправил:) $f = array(new example, "test"); 16.$f(); 17.$f = "example::check"; 18.$f(); 19.?> The given program was supposed to produce the following output on execution. Check Test Check However, the program contains errors. Identify the line numbers that contain errors.

12. In relation to PHP 7.1 global space, prefixing a name with which of the following options specifies that the name is required from the global space even in the context of the namespace?

13. Output of the following PHP code? var_dump('pqrstu'[-2]); var_dump(strpos('ppqqrr','q', -3)); ?>

14. Output of the following PHP 7.1 code snippet? - abstract class A_Class { abstract protected function name_P($name); } class Example extends A_Class { public function Name_P($name, $separator = '.') { if ($name == 'Mango') { $product = 'Fruit'; } elseif ($name == 'Carrot') { $product = 'Vegitable'; } else { $product =''; } return '{$name}{$separator} {$product}'; } } $class = new Example; echo $class->Name_P('Mango'), '\n'; echo $class->Name_P('Carrot'), '\n'; ?>

15. In relation to PHP array cast, Booleans can be cast to which of the following options?

16. Which option can be used to mark the type declarations for parameters and return values as nullable, by prefixing the type name?

17. In PHP 7.1, which operators are non-associative?

18. Correct syntax of the is_iterable() function, which is used to verify whether or not the content of a variable is an iterable value?

19. While creating or modifying an array in PHP 7.1, what will happen if an empty index operator is applied on a string?

20. Find the output of the following PHP code. $string = echo 'The output for '$string' is '$string[-1]'.\n'; ?>

21. What will be the output of the following PHP 7.1 code snippet? class Red { public static function b_func() { static::a_func(); } public static function a_func() { echo "Colour is ",__CLASS__."\n"; } } class Blue extends Red { public static function run() { Red::b_func(); parent ::b_func(); self::b_func(); } public static function a_func() { echo "Colour is ",__CLASS__."\n"; } } class Green extends Blue { public static function a_func() { echo "Colour is ",__CLASS__."\n"; } } Green::run(); ?>

22. Under which scenario, a TypeError may be thrown? i) When the argument type, which is being passed to a function, does not match its corresponding declared parameter type. ii) When the returned value from a function does not match the declared function return type. iii) When an invalid number of arguments are passed to a built-in PHP function.

23. Which is the correct syntax for a function with iterable generator return type?

24. What Output will be? interface Exp { public function x();} class First implements Exp { public function x() {} } class Second {} function x(Exp $e){ echo get_class($e).'\n'; } x(new First); x(new Second); ?>

25. What will be the output? declare(ticks=1); function t_handler() { echo 'Example function\n'; } register_tick_function( $x = 1; if ($x > 0) { $x += 2; print($x); } ?>

26. What will be the output? $example = true; example_y(); if ($example){ function example_x() { echo 'PHP\n'; } } if ($example)example_x(); function example_y() { echo 'Example\n'; } ?>

27. In the following PHP 7.1 code snippet, commenting or removing which code line will result in the successful compilation of the code? 1. 2. namespace X\Y\Z; 3. class Exception extends \Exception {} 4. $x = new Exception() 5. $y = new \Exception('hi'); 6. $z = new ArrayObject; 7. ?>

28. Which is NOT correct about PHP 7.1 variables?

29. Which can be used as a default value for parameters that are declared as iterable?

30. Output will be? $o = (object) array( var_dump(isset($o-> {'5'})); var_dump(key($o)); ?>

31. Find the output of the following PHP 7.1 code. var_dump(round(35/6)); ?>

32. Correct magical PHP constant that is used to determine the current line number of a file?

33. Correct statement about generators? i) With generators, less code is required to be written as compared to implementing an iterator class. ii) The same generator can be iterated over multiple times.

34. As an alternative to an existing list() syntax in PHP 7.1, which can be used to de-structure arrays for assignments (including within foreach)?

35. Find the output of the following code. trait Example { public function myFunction() { echo } } class ABC { public function myFunction() { use Example; echo 'Hello PHP!'; } } $obj = new ABC(); $obj->myFunction(); ?>

36. Which code snippets will print the output, Example?

37. In which syntax, a string is delimited with operator, <<

38. Output will be? echo echo 'This is an example: \n a newline'; ?>

39. function multiple(int $x, int $y) { return $x * $y; } var_dump(multiple(3, 2)); var_dump(multiple(2.5, 5.5)); ?>

40. Which method is triggered when inaccessible methods are invoked in an object context?

41. function double($test) { return $test*2; } $bar = $ar = 5; $s = $ar++; $exp = $dp = ++$bar; $foo = double($dp++); $gh = double(++$exp); $res = $gh += 10; print_r($res) ?>

42. Scope of a constant in PHP 7.1 ?

43. class Example { public const ONE = private const TWO = 'two'; } echo Example::ONE, PHP_EOL; echo Example::TWO, PHP_EOL; ?>

44. Which of the given code statements should replace ??? in the following PHP 7.1 code snippet, so that 7, 6, 5, 4, is printed as output? function &example() { $var = 8; while ($var > 4) { yield $var; } } ??? } ?>

45. Which of the given statements is correct about the following PHP 7.1 code? class exp { public $b = <<< b EXAMPLE; } ?> '>

46. $fruit = 'orange'; echo 'She likes the juice of fruit Sfruit.'.PHP_EOL; echo 'She was asking for the juice of ${fruit}s.'.PHP_EOL; echo 'She is very fond of Sfruit fruit juice.'; ?>

47. Which is an error control operator in PHP 7.1 ?

48. While comparing objects in PHP 7.1, using which of the following operators results in identical object variables, if and only if, they refer to the same instance of the same class?

49. What will be the output of the following PHP 7.1 code? function inverse($a){ if (!$a){ throw new Exception( } return 20/$a; } try { echo inverse(8).

50. $example = array(2 =>=> 'Two', 4 => 'Four', 6 => 'Six'); unset($example[2]);$x = array_values($example); print_r($x);

51. In the following PHP 7.1 code, which of the given code statements should replace ??? to print the current year as output in the numeric format, i.e. 2017? $date_T = new DateTime(); ??? ?>

52. $example = function($x) { return $x * 3; }; $num = range(2, 6); $new_num = array_map($example, $num); print implode( )?>

53. $x = 'New '; $y = $x . 'Example '; echo $y; $x = 'New '; $x .= 'Example '; echo $x; ?>

54. class Example_Exp extends Exception {} class Check { public function checking() { try { try { throw new Example_Exp( } catch (Example_Exp $ex) { throw $ex; } } catch (Exception $ex) { var_dump($ex->getMessage()); } } } $bar = new check; $bar->checking(); ?>

55. Which of the following conditions must be followed by functions that are declared with void as their return type? i) Omit their return statement. ii) Use an empty return statement.

56. $x = array('x' => 'Adam', 'y' => 'Binca'); $y = array('x' => 'Avin', 'y' => 'Beth', 'z' => 'Chris'); $z = $y + $x; $x += $y; var_dump($x); ?>

57. var_dump((bool) -1); var_dump((bool) 1.5e5); var_dump((bool) 'false'); ?>

58. Which is the correct syntax of the function, Closure::from Callable, which is used to convert a callable into a closure?

59.

What will be the output of the following PHP 7.1 code snippet?

<?php

function xrange($first, $last, $forward = 1)

{ if ($first < $last) {

if ($forward <= 0) {

throw new LogicException('The value of forward should be positive');

}

for ($i = $first; $i <= $last; $i += $forward){

yield $i;

}

} else {

if ($forward >= 0) {

throw new LogicException('The value of forward should be negative');

}

for ($i = $first; $i >= $last; $i += $forward){

yield $i;

}

}

}

echo "\n";

echo 'Output is: ';

foreach (xrange(1, 7, 2) as $num) {

echo "$num";

}

?>

60. $st = echo 'At index -4, the character is $st[-4].', PHP_EOL; $st[-3] = 'o'; echo 'Replacement at index -3 to o gives $st.', PHP_EOL; ?>

61. $bar = <<< 1;Anna;eats mangoes 2;Mark;eats apples EOF; function bar_parser($bar) { foreach (explode('\n', $bar) as $I) { $foo = explode(';', $I); $id = array_shift($foo); yield $id => $foo; } } foreach (bar_parser($bar) as $id => $foo) { echo '$id:\n'; echo' $foo[0]\n'; echo' $foo[1]\n'; } ?>

62. Which code statement should replace ??? to obtain 12345 as output? function recursive($var){ echo $var; if($var < 5){ ??? } } $a = 1; recursive($a); ?>

63. var $example = var $array = array('My name is A.', 'My name is B.', 'My name is C.'); var $r = 'My name is r.'; } $f = new f(); $example = 'example'; $b = array('f', 'example', 'b', 'c'); echo $f->$example. '\n'; echo $f->{$b[1]} . '\n'; $start = 'exa'; $end = 'mple'; echo $f->{$start. $end}. '\n'; $array = 'array'; echo $f->{$array[1]}. '\n'; ?>

64. Which option can be the key of an array?

65. class Example { public function abcFunction() { return Closure::fromCallable([$this, } private function privateFunction($param) { var_dump($param); } } $expFunc = (new Example)->abcFunction(); $expFunc('My New Example');?>

66. $E_array = array( 'test' => 'code', 64 =>46, 'multi' => array( 'dimensional' => array( 'array' => 'test' ) ) ); var_dump($E_array['test']); var_dump($E_array [64]); var_dump($E_array['multi']['dimensional']['array']); ?>

67. for($a=0,$b=20; $a<50; $a++) { while($b--) { if($b==8) goto end; } } echo 'a = $a'; end: echo ?>

68. var_dump(0 == 'x'); var_dump('2' == '02'); var_dump('20' == '2e2'); var_dump(200 == '2e4'); switch ('x') { case 0: echo '0'; break; case 'x': echo 'x'; break; } ?>

69. class First { private $foo = 2; protected $bar = 4; protected function A_funct() { return 5; } public function B_funct() { return new class($this->foo) extends First { private $test; public function _construct($foo) { $this->test = $foo; } public function C_funct() { return $this->bar + $this->test + $this->A_funct(); } }; } } echo (new First)->B_funct()->C_funct();?>

70. Which cast option can be used for explicitly converting a value to integer?

71. Which is the correct output of the following PHP 7.1 program? function swap(&$x, &$y): void { if ($x === $y) { return; } $exp = $x; $x = $y; $y = $exp; } $var1 = 12; $var2 = 20; var_dump(swap($var1, $var2), $var1, $var2);?>

72. Which is correct about the following PHP 7.1 code? $example = 25; $b = &$example; $b = &(12 * 9); function t() { return 15; } $b = &t(); ?>

73. Which is an invalid constant in PHP 7.1?

74. Output of the following code? class Bar { public function checking() { return function() { var_dump($this); }; } } $object = new Bar; $function = $object->checking(); $function(); ?>

75. interface ExampleInterface { } class ExampleClass implements Exampleinterface { } $x = new ExampleClass; $y = new ExampleClass; $z = $p = 'NotExampleClass'; var_dump($x instanceof $y); var_dump($x instanceof $z); var_dump($x instanceof $p); ?>

76. Output of the following code? $example = array(2, 4, 6, 8, 10); foreach ($example as $x => $value){ unset($example[$x]); } print_r($example); $example[] = 12; print_r($example); $example = array_values($example); $example[] = 14; print_r($example); ?>

77. the string session_create_id ([ string $prefix ]) function is used for creating a new session id. Which of the following characters are allowed by the parameter prefix?

78. Find the output. namespace A\B\C; const E_ERROR = 32; function strlen($s) { return \strlen($s) - 5; } echo E_ERROR, '\n'; echo INI_ALL, '\n'; echo strlen( if (is_array('abc')) { echo 'is an example.\n'; } else { echo 'is a test.\n'; } ?>

79. Find the output. $a = $b = &$a; $b = 'I met $b'; echo $b; echo $a; ?>

80. What will be the output? for ($a = 2, $b = 1; $a <= 6; $b += $a, print $a, $a++); ?>

81. Which is the correct output ? $result = echo '

$result

82. Error reporting should be set to which option in the development environment?

83. Which is correct about the following snippet? const C = 2; class example { const D = C * 2; const E = C + self::D; const F = } echo example::D, PHP_EOL; echo example::F; ?>

84. Which is used for checking the installed version of PHP 7.1 ?

85. Which is correct? class example { function do_example() { echo 'Testing example code.'; } } $b = new example; $b->do_example(); ?>

86. What is the correct output? interface exp1 { const c = } echo exp1 ::c; class exp2 implements exp1 { const c = 'Second Example'; } echo exp2::c; ?>

87. Which is correct about the following snippet? function example() { foreach (range(5, 7) as $a){yield; } } var_dump(iterator_to_array(example())); ?>

88. We have two variable definitions: 1. 023 2. x23 Choose the correct options:

89. Which is not supported in PHP5?

90. You need to keep an eye on the existing number of objects of a given class without introducing a non-class member variable. Which makes this happen?

91. What will be the output?

92. What is the output? function fn(&$var) { $var = $var - ($var/10 * 5); return $var; } echo fn(100);

93. 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?

94. Does PHP provide the goto keyword in latest version?

95. What do you infer ?

96. Which variable is used to fetch the IP address of the user in your PHP application?

97. Which text manipulation functions is supported by PHP?

98. You need to check the size of a file in PHP function. $size=X(filename); Which function will suitably replace 'X'?

99. Which types are supported by 'str_replace()' function?

100. Output of code? $Rent = 250; function Expenses($Other) { $Rent = 250 + $Other; return $Rent; } Expenses(50); echo $Rent;