I am building an web app that basically does booking stuffs in PHASE 1. I have planned to complete booking in 4/5 steps. First, checking device is ready or not, second seeing allocation of device, third getting customer information, fourth payment information.
I just want to know about how the data is to be stored till the last page where we store all data in the database. Till then, how to move data from one page to another.
Which technique is best? If there are any other techniques to store informations from page to page, Please I need to know for my project. I also need to protect those information from being hacked.
I am using PHP and framework is Codeigniter