如何在php中打印剩余的会话时间? [英] How to print session time remaining in php?

问题描述

我有一个 PHP 程序，我想在屏幕上打印用户在他们的会话到期前还有多长时间.我希望它在重新加载页面时更新.

I have a program in PHP and I want to print to the screen how much time the user has until their session expires. I want it to update when they reload the page.

例如像这样的简单消息:

For example a simple message like this:

您的会话将在 60 分钟后到期

Your session expires in 60 minutes

...页面重新加载...

...page reload...

您的会话将在 59 分钟后到期

Your session expires in 59 minutes

另外，如何设置超时值?

Also, how do I set the timeout value?

推荐答案

您可以设置一个带有 UNIX 时间的 cookie 并与之进行比较.

You can set a cookie with the UNIX time and compare with that.

setcookie("start", time(), time ()+3600); // saves a cookie with current UNIX time for one hour

在此处阅读有关 setcookie 的信息 http://php.net/manual/en/function.setcookie.php
如果您以前从未使用过，请务必仔细阅读开头.

Read about setcookie here http://php.net/manual/en/function.setcookie.php
If you never used it before, be sure to read the begining carefully.

并比较时间，例如:

If (isset($_COOKIE["start"]) and $_COOKIE["start"]+3600<time()){
    echo (time()-$_COOKIE["start"])/60 . " minutes left";
}Else{
    Echo "times up";
}

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