Question

Possible Duplicate:
Cross domain PHP Sessions

I have an IIS6 / WIMP system.

When a user visits a page on:

http://subdomain1.domain.com

then a page on:

http://subdomain2.domain.com

I need the session id to stay the same. I do not need to retain the session variables, just the session id. Each sub domain is setup as a separate site in IIS.

I would like to configure this through IIS, but if I have to do it through php that would work as well.

Answer 1

You should change session.cookie_domain directive in your php.ini file, or you can use PHP ini_set function.

You change it using ini_set function like this:

ini_set('session.cookie_domain', '.domain.com');

You should do this somewhere at bootstrap level.
This should work. I had similar situation where I had to create session at http://www.domain.com, and then use that session on http://www.subdomain.domain.com. And it works great.

Hope this helps!