public static function getGroup() {
		
		$attr = [];

		foreach(static :: $group as $group) {
			$attr = static :: arrayRecursiveMerge($attr, $group);
		}

		return $attr;
	}
public static function getGroup() {
		
		$attr = [];

		foreach(static :: $group as $group) {
			$attr = static :: arrayRecursiveMerge($attr, $group);
		}

		return $attr;
	}
public static function getGroup ( ) { $ attr = [ ] ; foreach ( static :: $ group as $ group ) { $ attr = static :: arrayRecursiveMerge ( $ attr , $ group ) ; } return $ attr ; }
Return all the groups as one merged array
@return array
Return all the groups as one merged array