php和redis的交互

来源：互联网发布：mysql安装版 64位编辑：程序博客网时间：2024/06/05 01:57
博客原文地址https://xgs888.top/post/view?id=62
在thinkphp5.0框架使用redis，redis支持五种数据类型 string hash list set zset
<?phpnamespace app\index\controller;use think\db;class Index{    /**     * 模拟商品的总库存     */    private $goods_count=100;    private $redis;    public function __construct(){        $this->redis = $this->redisConnect();    }    /**     * redis链接     * @return \Redis     */    public function redisConnect(){        $redis = new \Redis();        $redis->connect('127.0.0.1',6379);        return $redis;    }            public function shop(){                $msg = [];        $uid = mt_rand(1000,9999);        $len = $this->redis->HLEN('goods_users');       // echo $len;exit;        $goodsid = time();        if($len<=$this->goods_count){            // $this->redis->delete('goods_user_queue');exit;            //判断用户是已经抢购了商品            if(!($this->redis->hExists('goods_users','user_'.$uid))){                $data= [                    'user_'.$uid =>$uid,                    'goodsid' =>$goodsid                ];                $this->redis->hset('goods_users','user_'.$uid,$uid);                //如果没有抢到商品加入到队列                $this->redis->lpush('goods_user_queue',json_encode($data));                $msg['status']=1;                $msg['msg'] = '恭喜你抢购成功';            }else{                $msg['status'] = 2;                $msg['msg'] = 'sorry您已经购买过该商品了，只能参加一次';            }        }else{            $msg['status'] = 3;            $msg['msg'] = '活动已经结束';        }        echo json_encode($msg);            }        //跑定时任务    public function insertdata(){        $len = $this->redis->lLen('goods_user_queue');        if($len){            //如果redis存在购买信息则减少库存            $datajson = $this->redis->lPop('goods_user_queue');            $data = json_decode($datajson,true);            $where['id'] = $data['goodsid'];            //库存-1            db('goods')->where($where)->update(['goodsnum'=>'goodsnum-1']);            //写入订单表            db('order')->insert(['goodsid'=>$data['goodsid'],'uid'=>$data['userid']]);        }    }                    }
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