private static function db_cache($is_get, $sql, $ttl, $result = 'QUERY_EMPTY') { global $_K; $cache_obj = new keke_cache_class(CACHE_TYPE, $_K['cache_config']); $key = $cache_obj->generate_id($sql); if ($is_get == 1) { $res = $cache_obj->get($key); } else { $res = $cache_obj->set($key, $result, $ttl); } return $res; }