跨子域的 PHP 会话 [英] PHP Sessions across sub domains

问题描述

我正在尝试设置以下内容:

I am trying to set up the following:

auth.example.com
sub1.example.com
sub2.example.com

如果用户访问 sub1.example.com 或 sub2.example.com 并且他们没有登录，他们会被重定向到 auth.example.com 并可以登录.

If the user visits sub1.example.com or sub2.example.com and they are not logged in, they get redirected over to auth.example.com and can log in.

sub1.example.com 和 sub2.example.com 是两个独立的应用程序，但使用相同的凭据.

sub1.example.com and sub2.example.com are two separate applications but use the same credentials.

我尝试在我的 php.ini 中设置以下内容:

I tried setting the following in my php.ini:

session.cookie_domain = ".example.com"

但它似乎没有将信息从一个域传递到另一个域.

but it doesn't seem to be passing the information from one domain to the other.

我尝试了以下方法:

sub1.example.com/test.php

session_set_cookie_params(0, '/', '.example.com');
session_start();
print session_id() . "<br>";
$_SESSION['Regsitered'] = 1;
echo '<a href="http://auth.example.com/test.php">Change Sites</a>'

auth.example.com/test.php

session_set_cookie_params(0, '/', '.example.com');
session_start();
print session_id() . "<br>";
$_SESSION['Checked'] = 1;
print_r($_SESSION);

会话 ID 完全相同，但是当我转储 $_SESSION 变量时，它不会显示两个键，只是我在每个域下设置的任何键.

The session IDs are exactly the same but when I dump out the $_SESSION variable it doesn't show both keys, just whatever key I set under each domain.

推荐答案

我不知道问题是否仍然存在，但我遇到了同样的问题并解决了它在调用 session_set_cookie_params() 之前设置会话名称:

I do not know if the problem still exists, but I just ran into the same problem and solved it setting a session name before calling session_set_cookie_params():

$some_name = session_name("some_name");
session_set_cookie_params(0, '/', '.example.com');
session_start();

我在 php.ini 中没有做任何更改，但现在一切正常.

I have changed nothing in my php.ini but now everything is working fine.

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