3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ["a", "b"]; function search($input) { $result = $input; foreach($input as $a) foreach($input as $b) $result []= $a . $b; return array_walk(array_unique($result)); } echo json_encode(search($input));
Output for git.master, git.master_jit, rfc.property-hooks
Notice: Only variables should be passed by reference in /in/u7Q0k on line 12 Fatal error: Uncaught ArgumentCountError: array_walk() expects at least 2 arguments, 1 given in /in/u7Q0k:12 Stack trace: #0 /in/u7Q0k(12): array_walk(Array) #1 /in/u7Q0k(15): search(Array) #2 {main} thrown in /in/u7Q0k on line 12
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:
49.12 ms | 401 KiB | 8 Q