71097 Authorize.net Processin Script

Need a PHP script to be made that supports [login to view URL] AIM. Must use CURL ([login to view URL]) to communicate with [login to view URL] gateway. Also have the ability to redirect to a thank you page that may or may not be within the same domain upon approved transactions. Another feature would to redirect denied orders to webpage where it gives them the reason their order was denied (Error codes) and being able to redirect them back to the order form after they acknowledge this.