3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; $mem = mem_get_real_usage(true); echo $mem; $c = new \stdClass(); $a[] = $c; echo mem_get_real_usage(true) - $mem; $a[] = $c; echo mem_get_real_usage(true) - $mem;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function mem_get_real_usage() in /in/aIvnc:5 Stack trace: #0 {main} thrown in /in/aIvnc on line 5
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:
57.98 ms | 401 KiB | 8 Q