3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; $b = ["6310cdc0fee0927a6688a23a"]; var_dump(array_diff($b, $a));
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array(1) { [0]=> string(24) "6310cdc0fee0927a6688a23a" }
preferences:
88.92 ms | 402 KiB | 91 Q