486808 PHP Link Redirect Script - Custom

I need a special link redirect script that works this way: - I pass along the id of the link like: [login to view URL] It would pull the link based on the id from a database and redirect the user to that link. - I would also pass along a type: [login to view URL] Basically, this checks if id 32 exist in the database and if it doesn't defaults to bid (backup id) 2. Very simple script. Please PM questions.