从子域到域的setcookie

Question

I have:

     mydomain.com (which is the portal of the game, global setting and stuff)
game.mydomain.com (which is the the actual game)

The problem is that I want to set a cookie that is available globally, on game.mydomain.net , mydomain.net (and whatever subdomain i'm going to create in the future).

I've been trying to set the cookie from another subdomain as I've read that subdomains can set cookies to parent domains but not vice versa (which is wierd and I guess I've read it wrong). Whatever, so I've done another account.mydomain.com (from which I'm making an ajax call form mydomain.net so the user can authenticate) and I'm using

setcookie('session', $value, time() + 2592000 (one month), '/', '.tribul.net');

Then, return the success message and refresh the main page on mydomain.net so it can read the new cookie value.. problem is, there's no cookie set. I've also been trying to set the cookie from mydomain.com (as .tribul.net) so it can be avaialable on all subdomains but it's available only on the main domain. What's wrong?

I need to connect all subdomains and the domain to the same cookie, TO BE NOTICED, I am setting the cookie in a backend file named process.php (placed in account.domain.com) as result of an ajax request.

Answer 1

试试这个setcookie('session', $value, time() + 2592000 , '', '.tribul.net');

Answer 2

In php.ini:

session.cookie_path = /

session.cookie_domain = ".mydomain.com"

Set Cookie:

setcookie('session', $value, time() + 2592000, '/', 'mydomain.com');

Answer 3

为了使用我的问题，我使用了Klaus Hartl的jquery cookie插件 ，因为我无法从ajax后端设置全局cookie。