3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'a' => 2, 'z' => 2, 'd' => 1 ]; $allowlist = ['a', 'd']; uksort( $array, fn($a, $b) => [$array[$b], in_array($b, $allowlist)] <=> [$array[$a], in_array($a, $allowlist)] ); var_export($array);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'a' => 2, 'z' => 2, 'd' => 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:
62.96 ms | 401 KiB | 8 Q