We currently have a survey online in ASP. We're changing hosts and we want to recreate it in PHP. The survey consists of 9 categories (with 60 questions total). The answers are all multiple choice (1-6 or 1-10). The survey needs to compute a mathematical average for each of the 9 categories and then display the results for the user in a table. We also need to be able to download all of the survey data to an excel spreadsheet from time-to-time.
What's your best price? Please include links to any online surveys you've created with PHP.