3v4l.org

run code in 300+ PHP versions simultaneously
<?php $chars = ["a", "b", "c"]; var_export( array_reduce( $chars, fn($result, $v) => array_merge($result, array_fill(0, 3, $v)), [] ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'a', 1 => 'a', 2 => 'a', 3 => 'b', 4 => 'b', 5 => 'b', 6 => 'c', 7 => 'c', 8 => 'c', )

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:
29.32 ms | 405 KiB | 5 Q