troubleshooting Question

How to differentiate between facebook application being used from facebook or direct from hosting server

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rawcoder asked on
PHPAJAXWeb Development
3 Comments1 Solution186 ViewsLast Modified:
I have a facebook application but want to differentiate between users accessing the application from facebook as opposed to users going directly to, for example.  Also, if a user is using the application from facebook, can I get their user and age without having to log them in again?
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