Sessions across domains and subdomains.

[Pixel Inception]

Hey guys I had a question about sessions across a subdomain and main domain. I used to know how to do this but im having a brain fart right now. Right now I have a session that is created at sub.mydomain.com. I need to access the session at mydomain.com aswell. Does anyone know a solution?

[AlexVN]

You can change the session cookie domain for the scripts at sub.mydomain.com using
http://php.net/manual/en/function.se...kie-params.php
Then you will have one session for both domains.

If you cannot do this, you can implement your write and install your custom session handler using session_set_save_handler. For example, you can save it session data to database and read it with custom queries.

[G.Schuster]

If you cannot do this, you can implement your write and install your custom session handler using session_set_save_handler. For example, you can save it session data to database and read it with custom queries.

And that solves the cookie problem in which way?

If you'd like to use session cookies within the complete domain just set the cookie domain to ".example.com" - the dot before the domain name is required.
Cross-domain (e.g. example.com and example.net) isn't possible, use something like OpenID for this.

[AlexVN]

>And that solves the cookie problem in which way?
I suppose that Sean may want to access the data of the session in another domain, not just merge them.

[Pixel Inception]

Hey guys, thanks for the replies. I just want to access the session that was created on my subdomain on my main domain. I'll look into the function you have posted.

[Pixel Inception]

Ok guys, I remember how I did this.

For people who would like to know,

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

before every session_start(); on both subdomain session_starts as well as the main domain session_starts.