- var_dump: documentation ( source)
- array_replace_recursive: documentation ( source)
<?php
var_dump(array_replace_recursive(array(
'servers' => array(
array('host1', 11211),
array('host2', 11211),
array('host3', 11211),
),
), array(
'servers' => array(
array('host1-dev', 11211),
array('host2-dev', 11211),
array('host3-dev', 11211),
),
)));