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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


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 variable capture.
  • $matches['capture']: This is how you access the captured data.

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