3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array[] = array('441', '442', '443'); $array[] = array('441', '443'); $array[] = array('441', '442',); $array[] = array(); $array = array_filter($array); print_r(array_intersect(...$array));
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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
Array ( [0] => 441 )
preferences:
94.65 ms | 2003 KiB | 4 Q