3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; $b = false; var_dump([isset($a), empty($a)]); var_dump([isset($b), empty($b)]);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> bool(false) [1]=> bool(true) } array(2) { [0]=> bool(true) [1]=> bool(true) }

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:
39.77 ms | 401 KiB | 8 Q