MRBS - Joining sessions across multiple installs
I'm afraid I'm a complete novice and working through the pages in mrbs is well beyond my expertise. Basically I have 4 separate installs of mrbs running on my server, each with their own databases however sharing a user database that was created with the first install. I'm using the default PHP sessions.
I would like to be able to join the sessions so they can jump between each without having to login to each separately but haven't a clue where to start as never dealt with sessions before. If it goes well I was also wondering whether I could have another site on the same server use the same session for a simple ticketing system I built, which currently uses no authentication.
I know it's a lot to ask, but I've done a fair share of research and am still boggled by it all. This knowledge will hopefully prove most useful in other areas too.