php-regexHow to use named capture groups in PHP regex?
Named capture groups are a powerful feature of regular expressions in PHP. They allow you to capture parts of a string and assign them to a variable. This makes it easier to work with the captured data.
Example code
$string = 'This is a string';
preg_match('/This is (?<capture>\w+)/', $string, $matches);
echo $matches['capture'];
Output example
a
Code explanation
preg_match()
: This is a PHP function that takes a regular expression and a string as arguments and returns an array of matches.(?<capture>\w+)
: This is the named capture group. It captures one or more word characters and assigns them to the variablecapture
.$matches['capture']
: This is how you access the captured data.
Helpful links
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