Regular Expressions with PHP Test MCQs (Chapterwise Multiple Choice Questions)

Which of the following PHP Regular Expression modifiers finds one or more occurrences of a specific character in a string?

?

*

+

#

Answer & Explanation

Correct Answer: +

Note: This Question is unanswered, help us to find answer for this one

Analyze the following code:

<?php
$string = 'This is a [templateVar]';
preg_match_all("/[\[\]]/", $string, $matches);
foreach($matches[0] as $value)
        {
        echo $value;
        }
?>

What will be the output of the above code snippet?

[\[\

[\]

[]]

[]

Answer & Explanation

Correct Answer: []

Note: This Question is unanswered, help us to find answer for this one

Suppose you pass "a(bc)*" as a pattern to be matched to a specified string using PHP Regular Expressions. Which of the following strings does not match the above pattern?

aa

aade

abc

bcde

Answer & Explanation

Correct Answer: bcde

Note: This Question is unanswered, help us to find answer for this one

Which of the following is the correct syntax for creating a Regular Expression in PHP?

preg_match("/^ABC/i", $string)

preg_match("\^ABC\i", $string)

preg_match("^ABC", $string)

preg_match("/^ABC/i/", $string)

Answer & Explanation

Correct Answer: preg_match("/^ABC/i", $string)

Note: This Question is unanswered, help us to find answer for this one

Analyze the following code that uses a PHP Regular Expression Character Set:

<?php
$string = "Is this all there is?";
preg_match_all("/[a-h]/",$string,$matches);
foreach($matches[0] as $value)
        {
        echo $value;
        }
?>

What will be the output of the above code snippet?

h

hahee

h,a,h,e,e

hae

Answer & Explanation

Correct Answer: hahee

Note: This Question is unanswered, help us to find answer for this one

Suppose you perform pattern matching in a string using the \n PHP Regular Expression modifier. Which of the following values is returned if no newline character occurs in the string?

0

null

false

None of the above

Answer & Explanation

Correct Answer: 0

Note: This Question is unanswered, help us to find answer for this one

Analyze the following code snippet that uses the preg_replace() PHP Regular Expression method:

<?php
$string = 'This is the {_FOO_} brought to you by {_BAR_}';
$template_vars=array("FOO" => "The PHP Way", "BAR" => "PHPro.orG");
$string = preg_replace("/{_(.*?)_}/ime", "\$template_vars['$1']",$string);
echo $string;
?>

What will be the output of the above code?

0

This is the The FOO Way brought to you by BAR

1

This is the The PHP Way brought to you by PHPro.orG

Answer & Explanation

Correct Answer: This is the The PHP Way brought to you by PHPro.orG

Note: This Question is unanswered, help us to find answer for this one

Analyze the following code that uses a PHP Regular Expression Character Set:

<?php
$string = "Welcome to the new era";
preg_match_all("/[h-b]/",$string,$matches);
foreach($matches[0] as $value)
        {
        echo $value;
        }
?>

What will be the output of the above code snippet?

null

1

Compilation error will be displayed.

h

Answer & Explanation

Correct Answer: Compilation error will be displayed.

Note: This Question is unanswered, help us to find answer for this one

Analyze the following code that uses a PHP Regular Expression Character Set:

<?php
$string = "Is this all there is?";
echo(preg_match("/[^A-J]/",$string,$matches));
?>

What will be the output of the above code snippet?

1

I

Is

s

true

Answer & Explanation

Correct Answer: 1

Note: This Question is unanswered, help us to find answer for this one

Which of the following PHP Regular Expression modifiers is used to put the Regex on multiple lines while at the same time allowing comments within the Regular Expression itself?

x

u

e

s

Answer & Explanation

Correct Answer: x

Note: This Question is unanswered, help us to find answer for this one

Regular Expressions With PHP Test Quick Quiz

Poor Results!

You need a lot of improvement.

Just don't give up!

Correct Answers: 0/10

Start Practicing with our MCQs given below.

Regular Expressions With PHP Test MCQ

Regular Expressions With PHP Test Quick Quiz

Which of the following PHP Regular Expression modifiers finds one or more occurrences of a specific character in a string?

Analyze the following code: <?php $string = 'This is a [templateVar]'; preg_match_all("/[\[\]]/", $string, $matches); foreach($matches[0] as $value) { echo $value; } ?> What will be the output of the above code snippet?

Suppose you pass "a(bc)*" as a pattern to be matched to a specified string using PHP Regular Expressions. Which of the following strings does not match the above pattern?

Which of the following is the correct syntax for creating a Regular Expression in PHP?

Analyze the following code that uses a PHP Regular Expression Character Set: <?php $string = "Is this all there is?"; preg_match_all("/[a-h]/",$string,$matches); foreach($matches[0] as $value) { echo $value; } ?> What will be the output of the above code snippet?

Suppose you perform pattern matching in a string using the \n PHP Regular Expression modifier. Which of the following values is returned if no newline character occurs in the string?

Analyze the following code that uses a PHP Regular Expression Character Set: <?php $string = "Welcome to the new era"; preg_match_all("/[h-b]/",$string,$matches); foreach($matches[0] as $value) { echo $value; } ?> What will be the output of the above code snippet?

Analyze the following code that uses a PHP Regular Expression Character Set: <?php $string = "Is this all there is?"; echo(preg_match("/[^A-J]/",$string,$matches)); ?> What will be the output of the above code snippet?

Which of the following PHP Regular Expression modifiers is used to put the Regex on multiple lines while at the same time allowing comments within the Regular Expression itself?

Analyze the following code:

<?php
$string = 'This is a [templateVar]';
preg_match_all("/[\[\]]/", $string, $matches);
foreach($matches[0] as $value)
{
echo $value;
}
?>

What will be the output of the above code snippet?

Analyze the following code that uses a PHP Regular Expression Character Set:

<?php
$string = "Is this all there is?";
preg_match_all("/[a-h]/",$string,$matches);
foreach($matches[0] as $value)
{
echo $value;
}
?>

What will be the output of the above code snippet?

Analyze the following code that uses a PHP Regular Expression Character Set:

<?php
$string = "Welcome to the new era";
preg_match_all("/[h-b]/",$string,$matches);
foreach($matches[0] as $value)
{
echo $value;
}
?>

What will be the output of the above code snippet?

Analyze the following code that uses a PHP Regular Expression Character Set:

<?php
$string = "Is this all there is?";
echo(preg_match("/[^A-J]/",$string,$matches));
?>

What will be the output of the above code snippet?