3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = [ 0 => 1, 1 => 2, 2 => 3, 3 => 4, 4 => 5, ]; $e = [ 110 => 1, 111 => 2, 112 => 3, 113 => 3, 114 => 3, 115 => 8, 116 => 9 ]; print_r(array_diff($i, $e)); print_r(array_diff($e, $i));

preferences:
37.07 ms | 402 KiB | 5 Q