3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a = [1,2,3,4,5,6,7,8,9]; $b = [2,5,7,11,21]; var_dump( array_intersect($a, $b) );
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(3) { [1]=> int(2) [4]=> int(5) [6]=> int(7) }
preferences:
49.16 ms | 708 KiB | 4 Q