Online PHP editor | refs for guC6v

<?php $array1 = [ 0 => '2018-08-21 10:00:00', 1 => '2018-08-28 10:00:00', 2 => '2018-09-04 10:00:00', 3 => '2018-09-11 10:00:00', 4 => '2018-09-18 10:00:00', ]; $array2 = [ '0' => '2018-08-21 10:00:00', '1' => '2018-08-28 10:00:00', '2' => '2018-09-04 10:00:00', '3' => '2018-09-11 10:00:00', '4' => '2018-09-18 10:00:00', ]; $diff = array_diff($array1, $array2); var_dump($array1, $array2, $diff);