3v4l.org

run code in 300+ PHP versions simultaneously
<?php $first = ['Catalog No.: ', 'H-B No. ']; $second = [['GG', 692],['VV', 693]]; var_export( array_map( fn($row) => substr_replace($row, $first, 0, 0), $second ) );
Output for git.master_jit, git.master
array ( 0 => array ( 0 => 'Catalog No.: GG', 1 => 'H-B No. 692', ), 1 => array ( 0 => 'Catalog No.: VV', 1 => 'H-B No. 693', ), )

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:
59.28 ms | 405 KiB | 5 Q