# phpGrace redis 形式的緩存 redis 形式的緩存 ## **php 擴展需求** > 需要開啟?php_memcache?擴展 Redis 相關知識： >查看Redis 介紹 ## **修改全局配置 phpGrace/config.php** ~~~ 'cache'?????????????=>?array( ????'type'??????????=>?'redis', ????'host'??????????=>?'127.0.0.1',?//主機地址 ????'port'??????????=>?'6379',?????//端口 ????'pre'???????????=>?'grace_'????//緩存變量前綴 ) ~~~ ## **調用演示** ~~~ <?php class?indexController?extends?grace{ ????public?function?index(){ ????????$this->cache('test',?12,?'__getData'); ????????p($this->test); ????} ???? ????public?function?__getData(){ ????????echo?'無緩存，進行查詢...<br?/>'; ????????$db?=?db('persons'); ????????$persons?=?$db->fetchAll(); ????????return?$persons; ????} ???? ????public?function?t(){ ????????$this->removeCache('test',?'12'); ????} ???? ????public?function?t2(){ ????????$this->clearCache(); ????} } ~~~