PHP, Apache and MySQL are package tool of WampServer and an acronym formed from the initials of the operating system Microsoft Windows.
It the true, Apache is the very popular open source web server.
MySQL is the very popular open-source database that used large amount of websites in the world wide.
PHP is also very popular server side scripting language designed to produce dynamic web pages and it used by hundred million of user to develop their web site.
Advantage of wamp server
in order create dynamic web applications with PHP, Apache and Php myadmin(MySQL database) WampServer allow users to set up a server locally on their Windows machine in the same conditions of development on the server.
and you can upgrade components, develop, perform any web development task and carefully test everything offline first, which reduces the risks of creating problems on the live server.
It is very easy to install WampServer you just download the wamp server installation file (free) and follow the on screen instructions. it will use by default, the Apache newest versions, MySQL and PHP. after installed wamp server, it possible you can add many PHP, Apache and MySQL releases as one wants. you can a different release go to select item on the wampserver menu.
www directory will created after you installed wampserver completely by default it located in C:\wamp\www. it is a folder allow you create php website file and then launch them on the web browser by type on the address bar "http://localhost". this url will show you the screen details and tool version and load the list of extensions, at the tools tab, you will find then 2 part (phpmyadmin , SQLiteManager) and (Your projects).