Question

Is it possible to share a session between my PHP app on a subdomain and my Ruby apps on my other subdomains?

I don’t really know where to take it from here. I know I can manually set the domain to the root one so that the cookie is valid for all the subdomains, but how would I get/set stuff from/to the session so that it’s shared across the subdomains?

I mainly want to use this to share login for my whole subdomains.

For the sake of knowledge, if it is the wrong approach to the problem, albeit a doable one, I’d like to understand both how to do it, and why should I not.

Thank you all!

Answer 1

If you want to share sessions in that manner (accross PHP/Java/Ruby/etc), you need to save sessions (and access them) from a Database.

See: http://php.net/manual/en/function.session-set-save-handler.php

And you would need an identical approach in Ruby.

To share cookies across domains, you also need to change the PHP session configuration option for session.cookie_domain from the default of "" (which inserts your domain name) to: ".yourhost.com" (note the prefixed period).