3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ar1 = array("color" => array("favorite" => "red"), 5); $ar2 = array(10, "color" => array("favorite" => "green", "blue")); $result = array_merge_recursive($ar1, $ar2); $result2 = $ar1 + $ar2; print_r($result); print_r($result2);

preferences:
59.74 ms | 402 KiB | 5 Q