Write some Software

I need to do a Back-end using PHP/MySQL for a Multi Level Marketing(MLM) website I'm building. Here are some of the features i need : Registration Page(would provide fields) 'validation required' fields would also be provided Login Page Personalized Back end page when logged in.'Welcome User' Will show level in mlm status user is Levels are usually from level 1-6 and each level has their respective names. Database should be able to update user pages with each new level user reaches and also update status and number of their down lines(would explain further by sending link for a similar page already created).Put differently As soon as a new user is added to a registration it validates the new client and adds it to the database directly under the person who introduced him/her until the 6 person referral is completed by the person Admin should be able to perform the ff functions: [login to view URL] random pincodes that can be used by users to register their username on the [login to view URL] pincodes are not correct the database would not allow registration to take [login to view URL] those random pincodes can be generated by using the database functions that it would recognize as soon as it is entered into the system 2,admin should have 'only privilege' to change or modify password or forgotten password for users [login to view URL] should receive push notification for any new registration and any new levels attained by newly registered users. if this is something you can do i have a demo i can give you the username and password to have a clearer idea