code upgrade to last PHP version

I need to upgrade a web application written five years ago in PHP + MySql but no longer working with the most recent version of PHP. The task is to modify the code in order to work with **register_globals** = *off , so* it should be cleaned by the $HTTP_*_VARS in favor of $_POST. The code works perfectly with PHP 4 and consists of 20 php files 10 Kb big in average. The program should run at least under Apache 2.2.11, with PHP 5.2.11 and MySql 5.1.36.* * ## Deliverables The program to modify is attached. The folder /hermes contains a readme file that explains how to install it on the server. The code is commented in Italian. I think it maybe understood even in Italian. Any way I can help you translating what you may thing is useful to translate. What the code does in detail I think is not important for you but I can assist you in case you need help. In few words yhe software is an administration tool for a school. The site administrator set the teachers theirs discipline and their classrooms. Then the teachers day by day enter the grade for the students and take note of who is absent. The parents have access too and can see what their children is doing.