function arrayMergeRecursive($arr2, $arr1)
{
$ret = array();
foreach ($arr2 as $key => $data) {
if (!isset($arr1[$key])) {
$ret[$key] = $data;
unset($arr1[$key]);
continue;
}
if (is_array($data)) {
if (!is_array($arr1[$key])) {
$ret[$key] = $arr1[$key];
unset($arr1[$key]);
continue;
}
$ret[$key] = PEAR_Config::arrayMergeRecursive($arr1[$key], $arr2[$key]);
unset($arr1[$key]);
}
}
return array_merge($ret, $arr1);
}