如何为 uuid 设置 cookie-php问题

How to set cookies for uuid(如何为 uuid 设置 cookie)

本文介绍了如何为 uuid 设置 cookie的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有一个网站，每次加载/刷新页面时都会生成一个 uuid.我想使用 cookie 使某个值在一段时间内保持不变.有谁知道可以帮助我的脚本?

I have a website which generates a uuid every time the page is loaded/refreshed. I want to make it so that a certain value remains the same for a period of time using cookies. Does anyone know of a script which can help me?

推荐答案

不确定你为什么要脚本，或者这里的问题是什么.要设置 cookie，只需使用:

Not sure why you are asking for a script, or what the problem here is. To set a cookie, just use:

if (empty($_COOKIE["uuid"])) {
    $uuid = uniqid();  // or use a real UUID
    setcookie("uuid", $uuid, time()+30*24*60*60, "/");
}
else {
    $uuid = $_COOKIE["uuid"];
}

实际上，您应该偶尔执行一次 setcookie 以刷新 cookie 生存期.

Actually you should execute the setcookie once in a while and anyway to have the cookie lifetime refreshed.

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