3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arrayFirst = [ "index" => [ 'a' => '1', ], [ 'a' => '2', ] ]; $arraySecond = [ "index" => [ 'b' => '1', ], [ 'b' => '2', ] ]; var_export( array_map( function(...$items) { return array_merge(...$items); }, $arrayFirst, $arraySecond ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 'a' => '1', 'b' => '1', ), 1 => array ( 'a' => '2', 'b' => '2', ), )

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:
41.03 ms | 401 KiB | 8 Q