3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items = array(1, 2, 3, 11, 15, 4, 5, 6); $items = array_diff($items, array(11,15,17,29,30,31,43)); print_r($items);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Array ( [0] => 1 [1] => 2 [2] => 3 [5] => 4 [6] => 5 [7] => 6 )

preferences:
324.62 ms | 405 KiB | 455 Q