I want to develop an online application process for use by a third-party user to be displayed in front of them . The form where data can go in and it generates a a value and based on the content.. (no real calculation)..

secondly for data handling process what should be done (mysql or i heard google docs could also be used)

kindly help me out where should i start? i believe it needs to be done in php so any related script available online?