3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '#([a-zA-z ])\1{2,}$#'; $string = 'rrrr'; preg_match($regex, $string, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(4) "rrrr" [1]=> string(1) "r" }

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:
25.99 ms | 405 KiB | 5 Q