PHP-survey based review system

For a school project I have to build a website that allows the user to review different locations. I plan to use a PHP survey to enable the user to review the location. The user will be asked to answer 5 questions based on their experience at the location. For each question the user will be presented with a choice of answers ranging from 1-5, with 5 being the best possible score and 1 being the lowest. Their score wil be added as they answer each question and their end total will be averaged. Depending on what their average score is, the location they are reviewing will be awarded a star rating. This star rating will then be saved to an underlying database.

I have considered a few ways on how to code this review system but I am unsure on what would be the most simplistic and easy to cope with. Does anyone have any suggestions?