PHP Deep Extend Array

Question

How can I do a deep extension of a multi dimensional associative array (for use with decoded JSON objects). I need the php equivalent of jQuery\'s $.extend(true, array1, arr

Answer 1

Taken from array_merge docs:

function array_extend($a, $b) {
    foreach($b as $k=>$v) {
        if( is_array($v) ) {
            if( !isset($a[$k]) ) {
                $a[$k] = $v;
            } else {
                $a[$k] = array_extend($a[$k], $v);
            }
        } else {
            $a[$k] = $v;
        }
    }
    return $a;
}