3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'a{ra:calc(*(la)100%);font-s'; $calc_regex = '(?<=:| |,|\\(|\\))(calc)\\s*(\\()\\s*((?:[^()]+|\\((?3)\\))*?)\\s*(\\))'; $string = preg_match('/'.$calc_regex.'/si', $string, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(5) { [0]=> string(15) "calc(*(la)100%)" [1]=> string(4) "calc" [2]=> string(1) "(" [3]=> string(9) "*(la)100%" [4]=> string(1) ")" }

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
38.81 ms | 401 KiB | 8 Q