PHP stands for Preprocessor Hypertext. Like HTML it canot be just viewed in browser but requires webserver(eg.Apache) running.PHP is relatively simple webdesigning language and perhaps most widely used language.It is Server side scripting language. Almost everything what you see on internet can be achived using PHP.We will first teach configuring Apache,Wamp and Microsoft IIS(Internet Information Services) to run PHP and configuring Mysql.To create database you should have basic knowledge of Mysql.Even if don't have you will have it's knowledge in next few pages.Web Server by default uses port 80.At a time only one web server out of Apache,wamp,IIS should be running.Otherwise port clash will occur.