3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1); $r =& $a[0]; $b = $a; $b[1] = 999; $b[0] = 2; var_dump($a[1]); var_dump($a[0]);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key 1 in /in/0BvZn on line 8 NULL int(2)

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:
37.28 ms | 401 KiB | 8 Q