当用户关闭浏览器而不单击注销时销毁或取消设置会话 [英] Destroy or unset session when user close the browser without clicking on logout

问题描述

可能重复:
如何在30分钟后使PHP会话到期?

Possible Duplicate:
How do I expire a PHP session after 30 minutes?

我正在销毁logout.php中的所有会话var，并在用户单击注销时调用它，这是用户未单击logout.php而是直接关闭浏览器.我该如何删除会话呢?

I am destroying all session var in logout.php and calling it when user click on logout, what is user does not click on logout.php but directly close the browser. how can i delete session then???

推荐答案

您可以为会话数据设置过期时间，通过每次session_start调用对其进行测试，并在会话过期时销毁会话:

You can set an expiration time for the session data, test it with each session_start call and destroy the session if it’s expired:

session_start();
if (!isset($_SESSION['EXPIRES']) || $_SESSION['EXPIRES'] < time()+3600) {
    session_destroy();
    $_SESSION = array();
}
$_SESSION['EXPIRES'] = time() + 3600;

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