3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test( &$var ) { $var = 'reference'; } $var = 'no reference'; call_user_func('test', $var ); var_dump($var );
Output for git.master, git.master_jit, rfc.property-hooks
Warning: test(): Argument #1 ($var) must be passed by reference, value given in /in/VW2aB on line 10 string(12) "no reference"

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:
34.93 ms | 401 KiB | 8 Q