3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('test' => array('percy' => array('hello' => 'hatcherson'), 'percy' => array('mitchell', 'anderson'))); $allowed = array('percy'); $res = array_intersect_key($arr, array_flip($allowed)); var_dump($res);
Output for git.master, git.master_jit, rfc.property-hooks
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:
37.82 ms | 401 KiB | 8 Q