问题描述
我有php注销页面.当用户单击注销链接时,请参阅此页面并重定向到索引页面.但是当单击后退按钮时,我会看到包含用户数据的上一页.当然,当我刷新页面时,我看不到先前的页面和数据.单击注销并单击后退按钮后,我检查了其他代码(drupal),我没有看到上一页,也没有看到登录页面.我的问题在哪里.如何解决这个问题?
I Have php logout page. when user click in logout link See this page and redirect to index page. but when click in back button i see previouse page with user data. of course when i refresh page i dont see previouse page and data. i checked other code ( drupal ) after click logout and click back button i dont see previouse page and see login page. Where is my problem. how to fixed this ?
注销页面:
if (isset($_GET['req']) && $_GET['req'] == 'logout') {
session_start();
session_destroy();
header("Location: index.php");
exit();
}
谢谢
推荐答案
我认为这主要是客户端问题,并且归因于浏览器缓存标头.
I think this is mostly client side issue and due to browser cache headers .
解决方法是什么?
我认为您需要为静态内容和非静态内容正确设置缓存头
In my opinion you need to set cache headers for static content and non-static contents properly
静态内容(css/javascript/images):阅读此内容
Static contents (css/javascript/images ): read this
对于php页面本身:header("Cache-Control", "no-store, no-cache, must-revalidate");
For php page itself: header("Cache-Control", "no-store, no-cache, must-revalidate");
应该可以解决问题
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