hotspot billing software in php developer needed with ddwrt firmware or else [on hold]

I was going to share net through wifi at my area, So i need online billing softwre, for when user connect to my wifi and excess any page, Page auto redirect to login page. After Login sucessful user can excess any website.

I need online this program in php. with bandwith controll only.

I will Give Money who help me to create sotware in php. I am also a php dveloper but i dont have an Much Idea to do, This project.

Note: Limit user internet bandwith .

Thank You My Contact number is. +91 8149587579 Email: 0shoaib0@gmail.com