3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(true, false, false, true); $ao = new ArrayObject($a); foreach ($a as $key => $value) { echo $key, "\n"; if (!$value) { unset($a[$key]); } } echo json_encode($a), "\n"; echo "\n"; foreach ($ao as $key => $value) { echo $key, "\n"; if (!$value) { unset($ao[$key]); } } echo json_encode($ao), "\n";
Output for git.master, git.master_jit, rfc.property-hooks
0 1 2 3 {"0":true,"3":true} 0 1 3 {"0":true,"2":false,"3":true}

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:
62.95 ms | 401 KiB | 8 Q