I would like to know if it is possible to integrate Wordpress and the Moodle LMS application? I would like the users to only sign in once to access both applications. I was hoping it will be possible to edit both application login processes to add whatever code is needed for both applications to create a cookie etc... I'm already using one Database for authentication for both applications but this will just make it easier for the users. I'm not expecting a solution but just some advice from anyone if they think it will be possible.
It's definitely possible - I recently wrote a SSO plugin to allow users to be logged automatically into WP from a foreign system.
I sketched out my approach in this question: SSO / authentication integration with external 'directory service'