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

<?php
preg_match('/(?:\D+|<\d+>)*[!?]/', 'foobar foobar foobar');
if (preg_last_error() == PREG_BACKTRACK_LIMIT_ERROR) {
    echo 'Backtrack limit was exhausted!';
}
?>

What will be the output of the above code?

Suppose you use [hc]+at for pattern matching as a Regular Expression. Which of the following patterns does not match the above expression?

What is the [\b] PHP Regular Expression modifier used for?

Suppose you pass '^.{3}$' as a pattern to be matched to a specified string using PHP Regular Expressions. Which of the following strings match the above pattern?

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?

Analyze the following code: < ?php $string = '1, 100 or 1000?'; preg_match_all('/10*/',$string,$matches); foreach($matches[0] as $value) {echo $value; } ?> What will be the output of the above code snippet?

Analyze the following code snippet that uses the preg_quote() PHP Regular Expression method: < ?php $keywords = '$40 for a g3/400'; $keywords = preg_quote($keywords, '/'); echo $keywords; ?> What will be the output of the above code?

Analyze the following code snippet used to check the password strength: < ?php $password = 'Fyfjk34sdfjfsjq7'; if (preg_match('/^.*(?=.{8,})(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).*$/', $password)) { echo 'Your passwords is strong.'; } else { echo 'Your password is weak.'; } ?> What will be the output of the above code snippet?

Analyze the following code snippet that uses the preg_replace() PHP Regular Expression method: What will be the output of the above code snippet?

Which of the following statements are true about the \b PHP Regular Expression modifier?

Which of the following PHP Regular Expression modifiers finds any non digit character in a given string?