3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = null; var_dump($x); var_dump($y); var_dump($x===$y); echo (isset($x)); isset($y); ?>
Output for git.master, git.master_jit, rfc.property-hooks
NULL Warning: Undefined variable $y in /in/k3kZq on line 4 NULL Warning: Undefined variable $y in /in/k3kZq on line 5 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:
54.01 ms | 401 KiB | 8 Q