3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1=array(1,2,3,4,5); $array2=array(1,2,3,4,5,6); $result = array_merge(array_diff($array1,$array2),array_diff($array2,$array1)); echo $result;

preferences:
63.18 ms | 402 KiB | 5 Q