3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(array(1, 2), array(1)); $arr = array_map(function ($a) { return count($a) == 1 ? $a[0] : $a; }, $arr); print_r($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => 1 [1] => 2 ) [1] => 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:
186.13 ms | 405 KiB | 5 Q