What is webserver:

                               It is a software which manages "http" protocol by accepting the requests and responding to  as hypertext documents.

                             Installing of webservers Ex: Apache 2.x.x Webserver

Installing Web Servers:-

Apache 2.0.53:

1. Default 80 Port.
if  80 port busy than 8080

           Start
               ↓

          Program Files

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PHP is a general-purpose server-side scripting language orginally designed for Web development Program. To create dynamic webpages. It is one of the first developed server side scripting languages. PHP is using on more than 20 million websites and 1 million web servers. PHP was originally created by Rasmus Lerdorf in 1995. While PHP originally stood for "Personal Home Page", it is now said to stand for "PHP: Hypertext Preprocessor", a recursive acronym.