3v4l.org

run code in 300+ PHP versions simultaneously
<?php $callable = function(&$foo) { $foo = 42; }; $bar = 23; $callable(23); var_dump($bar);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: {closure}(): Argument #1 ($foo) cannot be passed by reference in /in/moE3A:8 Stack trace: #0 {main} thrown in /in/moE3A on line 8
Process exited with code 255.

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:
52.12 ms | 401 KiB | 8 Q