Does people who got accepted to pharmacy school have to take PTCB test before entering pharmacy school? I knew I have to have State Technician License (PA in my case) but I am not sure if I should take PTCB or not.
Are you sure it's the tech license, not the intern license. Either way all you'll need to do to find out if you need the PTCE or not is check with state board of pharmacy and it'll tell you what requirements they have for either. If you don't know the web address, usually googling "[x] state pharmacy board" will do the trick.
Here's the one for PA (second link by using above method)
It doesn't show tech licensing, I didn't look much further, but it doesn't seem that there is such a thing in PA. It does have the application for intern license, which is what I think you meant anyway.