3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => 'one', 'b' => 'two'); var_dump(array_keys($a)); var_dump(array_keys($a, null));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(1) "a" [1]=> string(1) "b" } array(0) { }

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:
49 ms | 401 KiB | 8 Q