<?php
header("content-type:text/html;charset=utf-8");
$redis = new redis();
$result = $redis->connect('127.0.0.1', 6379);
$mywatchkey = $redis->get("mywatchkey");
$rob_total = 10;
//抢购数量
if ($mywatchkey < $rob_total) {
$redis->watch("mywatchkey");
$redis->multi();
//设置延迟，方便测试效果。
sleep(5);
//插入抢购数据
$redis->hSet("mywatchlist", "user_id_" . mt_rand(1, 9999), time());
$redis->set("mywatchkey", $mywatchkey + 1);
$rob_result = $redis->exec();
if ($rob_result) {
$mywatchlist = $redis->hGetAll("mywatchlist");
echo "抢购成功！<br/>";
echo "剩余数量：" . ($rob_total - $mywatchkey - 1) . "<br/>";
echo "用户列表：<pre>";
} else {
echo "手气不好，再抢购！";
exit;
}
}
?>