i am responsible to develop a database for an organization, and i want to develop a centralized database system.
i decided to use PHP as fornt-end and mysql as back-end and wamp server as web server...
now i dont know how to implement it and will you tell me that which other hardware and software i need to accomplish my task.
and how to install and configure the servers to provide services to users.
and how to do the connectiviy??

I suggest you install WAMP or XAMPP on your machine and start trying stuff first (PHP is backend/server-side too).

Is this for an intranet, or does it have to be accessible anywhere?