3v4l.org

run code in 300+ PHP versions simultaneously
<?php function normalizeArray($ids) { $res = array(); $ids = (array) $ids; if (count($ids) > 0) { foreach ($ids as $id) { if (is_numeric($id)) { $res[] = (int) ($id); } } } return $res; } $s = ', '; $s = explode(',',$s); $i = normalizeArray($s); var_dump($i);
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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(0) { }
preferences:
237.64 ms | 406 KiB | 355 Q