1. 删除readis
$Ranking = $this->Redis->_delete(‘lianmengname‘);
2. 读取readis缓存
$Ranking = $this->Redis->_get(‘lianmengname‘);
3. 存readis
if(empty($Ranking)){
$Ranking = $this->DoubleAct->selectRanking();
$this->Redis->_set(‘lianmengname‘,json_encode($Ranking),1800);//缓存半小时
}
原文：http://www.cnblogs.com/yangzailu/p/7477967.html