此代码段无法正确设置Cookie的任何原因？ [英] Any reason why this code snippet wouldn't set a cookie properly?

问题描述

这个小的PHP代码片段用于设置一个cookie，让我确定用户是否登录。出于某种原因，在我使用javascript重定向后，我的Cookie都不会被设置。为什么会发生这种情况的任何原因？

This little PHP snippet is used to set a cookie that lets me determine whether or not a user is logged in. For some reason, after I use the javascript to redirect, none of my cookies are set any more. Any reason why this would be happening?

我可能没有给您足够的信息，所以让我知道是否这样。

I may not be giving you enough info so let me know if so.

...some database queries...
<?php 
    $expire=time()+(7 * 24 * 60 * 60);
    $row = mysql_fetch_array($query);
    $email = $row['email'];
    $userinfo['name'] = $name;
    $userinfo['email'] = $email;
    $userinfo = serialize($userinfo);
    setcookie("user", $userinfo, $expire);
    echo '<script type="text/javascript">
        window.location = "../index.php";
    </script>';

?>

推荐答案

函数setcookie返回true或false，设置成功。您可以尝试这个测试：

Function setcookie returns true or false, depending on whether cookie was set successfully. You could try this to test:

if(!setcookie("user", $userinfo, $expire)) {
    echo 'Could not set cookie!';
}

如果这返回false，那么Kumar是正确的。否则必须有其他原因。

If this returns false, then Kumar is right. Otherwise there has to be some other reason.

EDIT setcookie可以使用更多参数调用，如下所示：

EDIT setcookie can be called with more parameters, like this:

setcookie(name,value,expire,path,domain,secure)

注意路径和域值。我有过问题，因为两个不同的页面，因为不同的路径/域而找不到对方的Cookie。

Notice the path and domain values. I have had problems in the past with two different pages not find each other's cookies because of different paths/domains.

我注意到你重定向到../index。 php。尝试重定向到index.php，并查看是否存在cookie。如果是，那么您应该使用一个公共的路径变量来设置Cookie。

I noticed that You redirect to "../index.php". Try redirecting to "index.php" and see if the cookies exist there. If yes, then You should use a common "path" variable to set cookies.

从 http://www.php.net/setcookie 关于路径变量：

服务器上将存在Cookie的路径。如果设置为/，则Cookie将在整个域中可用。如果设置为/ foo /，那么cookie只能在/ foo /目录和所有子目录（如/ foo / bar / of domain）中可用。默认值是设置Cookie的当前目录。

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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