private static function addChildren(SimpleXMLElement $xml)
{
$properties = array();
foreach ($xml as $child) {
if (count($child->children()) > 0) {
$children = self::addChildren($child);
if (AkInflector::isCollectionOf($child->getName(), $xml->getName())) {
$properties[] = $children;
} else {
$properties[$child->getName()] = $children;
}
} else {
$properties[$child->getName()] = (string) $child;
}
}
return $properties;
}