3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ [1, 2, 3, 4], ['one', 'two', 'three', 'four'] ]; $out = array_map(function (...$r) { return $r; }, ...$arr); print_r($out);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Array ( [0] => Array ( [0] => 1 [1] => one ) [1] => Array ( [0] => 2 [1] => two ) [2] => Array ( [0] => 3 [1] => three ) [3] => Array ( [0] => 4 [1] => four ) )
preferences:
109.73 ms | 409 KiB | 5 Q