3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = array("Cars", "Trucks", "Vans", "Boats",); $a2 = array('Boats', 'Trucks', 'Vans', 'Cars'); $a3 = array('Cars', 'Trucks', 'Vans', 'Boats'); $d1 = array_diff($a1, $a2); $d2 = array_diff($a2, $a3); $d3 = array_diff($a1, $a3); $e1 = $a1 === $a2; $e2 = $a2 === $a3; $e3 = $a1 === $a3; var_dump($d1, $d2, $d3, $e1, $e2, $e3);
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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(0) { } array(0) { } array(0) { } bool(false) bool(false) bool(true)
preferences:
350.57 ms | 406 KiB | 460 Q