PHP stands for Hypertext Preprocessor and it is a well-known language to develop a web application. In short definition, PHP is server-side, open source technology which is used to develop web applications ( Web applications help us to process data on the server side and to generate dynamic web pages for clients )
You may hear many time client side or server side scripting languages. But do you know the difference between client-side and server-side scripting language?. Before explaining it I would like to show this illustration which would help you to understand the difference between these scripting languages.