I am working with a client that needs an authentication system with 3 roles, Admin (full access), User (limited access), and (no access)

I'm an html5/css3/jquery guy... I'm not too educated on PHP.

Can someone write me a plug-and-play style script for this?

I would like to have one or two lines of code at the top of each page that will read the script and see if the user is allowed to have access.

I can plug in the database information, just please designate the areas they are needed in very clearly.

I can pay for this gig via paypal. I need it done by tomorrow.

If you do well, it will probably lead to me handing off most of the backend for the project to you.