简单的Redis缓存案例

$redis->connect('localhost',6379);                                                                              //Redis链接
$res=$redis->mget(array('sku','zip'));                                                                          //缓存键是否存在
if(!empty($order[0]['goods_sn'])) {                                                                             //单个SKU是否存在
    if ($res[0] == false && $res[1] == false) {                                                                 //缓存不存在写入缓存
        $small = $M->Summary($zipcode, $ordersize, $weight, $volum, $zip, $size, $order);                       //汇总数据
        $redis->multi();                                                                                        //开启事务
        $redis->mset(array('id'=>$small[0],'cost'=>$small[1],'sku' => $small[2], 'zip' => substr($small[3],0,5)));
        $redis->expire('id', 10);                                                                               //生存时间
        $redis->expire('cost',10);
        $redis->expire('sku', 10);
        $redis->expire('zip', 10);
        $redis->exec();                                                                                         //执行事务中队列
        $small = $redis->mget(array('id','cost','sku','zip'));
    } elseif (!empty($res[0]) && !empty($res[1])) {
        $redis->multi();
        $redis->expire('id', 10);
        $redis->expire('cost',10);
        $redis->expire('sku', 10);
        $redis->expire('zip', 10);
        $redis->exec();
        $small = $redis->mget(array('id','cost','sku','zip'));
    }
}