3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a = [1,2]; $b = [3,4]; $newArray = []; foreach ($a as $index => $value) { $newArray[] = [ $a[$index], $b[$index] ]; } // Echo as JSON for readability echo json_encode($newArray);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
[[1,3],[2,4]]

preferences:
104.63 ms | 1278 KiB | 4 Q