3v4l.org

run code in 300+ PHP versions simultaneously
<?php function increment(&$var){ // call_user_func() not passed by reference ++$var; } $a = 0; call_user_func('increment', $a); echo $a; // output 1
Output for git.master, git.master_jit, rfc.property-hooks
Warning: increment(): Argument #1 ($var) must be passed by reference, value given in /in/ideSC on line 6 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:
59.6 ms | 401 KiB | 8 Q