3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array("a" => "green", "b" => "red", "d" => "blue"); $array2 = array("a","b","c"); $result = array_intersect_key($array1, $array2); print_r($result);

preferences:
53.89 ms | 402 KiB | 5 Q