get($this->key); if($list === false) { $sql = "select id,pid,name,region_level from ".DB_PREFIX."region_conf"; $list = $GLOBALS['db']->getAll($sql,true,true); $GLOBALS['cache']->set($this->key,$list); } return $list; } public function rm($param) { $GLOBALS['cache']->rm($this->key); } public function clear_all() { $GLOBALS['cache']->rm($this->key); } } ?>