public static function getDaoImpl($linkConfig) { if (empty(self::$daoImpl)) { self::$daoImpl = new ms_new_mysql($linkConfig['db']['dbhost'], $linkConfig['db']['dbuser'], $linkConfig['db']['dbpw'], $linkConfig['db']['dbname'], $linkConfig['db']['tablepre'], $linkConfig['db']['dbcharset'], $linkConfig['db']['pconnect']); } return self::$daoImpl; }