php redis 秒杀

最新推荐文章于 2024-11-20 10:58:20 发布

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<?php

namespace Admin\Controller;

use Think\Controller;

class TestController extends Controller
{

    public function redis()
    {
        $redis = new \Redis();
        $redis->connect('127.0.0.1', 6379);
        $store = 50;
        $res   = $redis->lLen('goods_store');
        $count = $store - $res;
        for ($i = 0; $i < $count; $i++) {
            $redis->lPush('goods_store', 1);
        }
        echo $redis->lLen('goods_store');
    }

    public function index()
    {
        $id = I('id');
        if ( ! $id) {
            die('缺少参数');
        }

        $redis = new \Redis();
        $redis->connect('127.0.0.1', 6379);
        $count = $redis->lPop('goods_store');
        halt($count);
        if ( ! $count) {
            die('没有货物');
        } else {
            $ordersn = md5(uniqid(microtime(true), true));
            $uid     = rand(1, 9999);
            $status  = 1;
            $data    = M('goods')->where(['id' => $id])->find();
            if ( ! $data) {
                die('商品不存在');
            }
            M()->startTrans();
            try {
                $res = M('orders')->add(['order_sn' => $ordersn, 'user_id' => $uid, 'goods_id' => $id, 'price' => 1, 'addtime' => date('Y-m-d H:i:s')]);
                if ( ! $res) {
                    throw new \Exception('a');
                }
                $res = M('Goods')->where(['id' => $id])->setDec('count');
                if ( ! $res) {
                    throw new \Exception('a');
                }
                M()->commit();
            } catch (\Exception $e) {
                M()->rollback();
                die;
            }


        }


    }
}