redis_简单秒杀_watch事务

简单秒杀

<?php

header("content-type:text/html;charset=utf-8");

$redis = new redis();

$result = $redis->connect('127.0.0.1', 6379);

$watchkey = $redis->get("watchkey");

$rob_total = 10;

if($watchkey<$rob_total){

$redis->watch("watchkey");

$redis->multi();

$redis->hSet("watchlist","user_id_".mt_rand(1, 9999),time());

$redis->incr("watchkey");

$rob_result = $redis->exec();

if($rob_result){

$watchlist = $redis->hGetAll("watchlist");

echo "抢购成功！<br/>";

echo "剩余数量：".($rob_total-$watchkey-1)."<br/>";

echo "用户列表：<pre>";

var_dump($watchlist);

}else{

echo "手气不好，再抢购！";

}

}else{

echo "已被抢购完!";

}