3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f() { call_user_func_array('g', func_get_args()); } function g(&$arg) { echo $arg; } f("Hello\n");
Output for git.master, git.master_jit, rfc.property-hooks
Warning: g(): Argument #1 ($arg) must be passed by reference, value given in /in/ICX97 on line 4 Hello

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:
26.04 ms | 405 KiB | 5 Q