3v4l.org

run code in 300+ PHP versions simultaneously
<?php $original = array('foo', null, 'bar', false, 5); $data = $original; foreach ($data as $key => $value) { if ($value === null) { unset($data[$key]); } } print_r($data); $data = $original; $data = array_filter($data, function ($value) { return $value === null; }); print_r($data);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => foo [2] => bar [3] => [4] => 5 ) Array ( [1] => )

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:
51.59 ms | 401 KiB | 8 Q