redis_php简单秒杀实例代码

<?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!";
}