Yep, you're missing something 'cause I didn't think to explain it all! sorry...
Well, here's the deal. I have a 'user' table, and I just now added a field to it 'viewed_vid', which isn't populated yet.
User will be watching a "video page" wich is parsed based on $vid. At that point i'd like to add that $vid to 'viewed_vid' for that certain user, so when he comes back, he'll see "You already viewed this video". When he goes on to another "video page", the $vid will be added to that same 'viewed_vid' field to keep users video history.
Does that make a bit more sense? I will only work with one user at a time - the user that's currently viewing that video page. 'viewed_vid' will be an array that holds all $vid that the user watched.
thanks so much for your help in advance.