問題描述

經過一些處理后，我想為用戶輸入設置一個 cookie 值，然后將它們重定向到一個新頁面.但是，cookie 沒有被設置.如果我注釋掉重定向，則 cookie 設置成功.我認為這是某種標題問題.這種情況的最佳解決方法是什么?

After doing a bit of processing, I want to set a cookie value to user input and then redirect them to a new page. However, the cookie is not getting set. If I comment out the redirect, then the cookie is set successfully. I assume this is a header issue of some sort. What is the best workaround for this situation?

if($form_submitted) {
    ...
    setcookie('type_id', $new_type_id, time() + 60*60*24*30);
    header("Location: $url");
    exit;
}

請注意，無論哪種情況，setcookie 都會返回 true 并且我沒有收到任何錯誤/警告/通知.

Note that setcookie returns true in either case and I get no errors/warnings/notices.

我使用的是 Unix/Apache/MySQL/PHP

I am using Unix/Apache/MySQL/PHP

推薦答案

如果您有人工 url 或子文件夾(如 www.domain.com/path1/path2/)，那么您必須將 cookie 路徑設置為/以適用于所有人路徑，而不僅僅是當前路徑.

If you have human urls or subfolders (like www.domain.com/path1/path2/), then you must set cookie path to / to work for all paths, not just current one.

if($form_submitted) {
    ...
    setcookie('type_id', $new_type_id, time() + 60*60*24*30, '/');
    header("Location: $url");
    exit;
}

來自 PHP 手冊:

服務器上的路徑cookie 將可用.如果設置為'/', cookie 將可用整個域內.如果設置為'/foo/', cookie 只會是在/foo/目錄中可用以及所有子目錄，例如/foo/bar/域的.默認的值是當前目錄正在設置 cookie.

The path on the server in which the cookie will be available on. If set to '/', the cookie will be available within the entire domain . If set to '/foo/', the cookie will only be available within the /foo/ directory and all sub-directories such as /foo/bar/ of domain . The default value is the current directory that the cookie is being set in.

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