3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array_group(callable $eq, array $xs) { $groupedXs = []; $grouped = [$xs[0]]; if ($eq($xs[0], $xs[1])) { $grouped[] = $xs[1]; } else { $groupedXs = $grouped; $grouped = [$xs[1]]; } } var_dump(array_group(function ($a, $b) { }, [[1, 'sold'], [2, 'registered'], [3, 'sold']]));
Output for git.master, git.master_jit, rfc.property-hooks
NULL

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:
45.49 ms | 401 KiB | 8 Q