PHP sessions sharing - subdomain as entry point

Question

I have a landing page like:

subdomain.mydomain.com

and there I assigned a few session vars, but now the problem is in one point user is redirected to mydomian.com and all session vars are lost.

I have tried ini_set('session.cookie_domain', '.mydomain.com' ); and htaccess and php.ini fixes, but NOTHING works.... and NO ERROR is generated, so I am kind of puzzled what's going on ?

Answer 1

Try to append this code, every domain, before starting session

session_name("WebsiteID");

replace WebsiteID with your favorite value.