Linking with external php

[jcbjoe]

Hello,

I recently purchased XenForo, I also own a different website but its still hosted on the same machine. What i'm wanting to do it make it so on the other website users are able to login using there XenForo login(user and pass). Then get other items from them like there id. I was wondering is this possible? and if so how could I do this?

Thanks,
Joe