Sessions across subdomains

[James_WC]

I know this issue's been raised by others before, but sadly I can't get it working still.

My site has many subdomains, and I want members to stay logged in no matter which subdomain they visit. However, even after following advice to put this session_set_cookie_params line before session_start() at the top of each file, the session is still only recognized in the root domain.

<?php

session_set_cookie_params(0, '/', '.mydomain.com');
session_start();

I've also heard of removing the dot before mydomain.com in the above code, but that doesn't work either.

Can anyone please tell me what I'm doing wrong? :queasy:

If it helps, here's how the member's cookie is set when they log in:

setcookie("username", $login_username, time()+60*60*24*365, "/", ".mydomain.com", FALSE, TRUE);

[bretticus]

have you tried:

ini_set("session.cookie_domain", ".mydomain.com");

??

[bradgrafelman]

If you used setcookie() when they logged in, then the data won't be in a session... it'll be in a cookie.

Pick one method - you can't mix and match them transparently.