3v4l.org

run code in 300+ PHP versions simultaneously
<?php // $userIdsForType3 = array_merge($userIdsForType3, array_diff($userHasNoDiff, $userIdList)); $id3 = array(1,2,3,4,5); $no_diff= array(4,5,6,7); $ids = array(1,2,3,4,5,6,7);
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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

preferences:
226.89 ms | 405 KiB | 322 Q