3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array ( 'productcode' => 218133, 'categoryid' => 315, 'color' => 'red' ); $array2 = array (10,220); $array1['categoryid'] = array_merge((array)$array1['categoryid'], $array2); print_r($array1);

preferences:
46.06 ms | 402 KiB | 5 Q