php-regexHow to match a single quote in PHP regex?

Single quotes can be matched in PHP regex using the \ character. This is an escape character that allows you to match a single quote in a regex expression.

Example code

$string = 'This is a string with a single quote ' inside';
$pattern = '/\'/';

if (preg_match($pattern, $string)) {
    echo 'Match found';
}

Output example

Match found

Code explanation

• $string: This is the string that we are searching for a single quote in.
• $pattern: This is the regex pattern that we are using to search for a single quote. The \ character is used to escape the single quote so that it can be matched.
• preg_match(): This is the PHP function that is used to search for a pattern in a string. It takes two parameters, the regex pattern and the string to search in.

Helpful links

• PHP preg_match() Function
• Regular Expressions in PHP

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