3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(':a' => 'b'); array_walk($arr, function ($val, $key) { $arr[':'.$key] = $val; unset($arr[$key]); }); var_export($arr);
Output for git.master, git.master_jit, rfc.property-hooks
array ( ':a' => 'b', )

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:
40.61 ms | 401 KiB | 8 Q