Techopedia explains Web Programming
Web programming can be briefly categorized into client and server coding. The client side needs programming related to accessing data from users and providing information. It also needs to ensure there are enough plug ins to enrich user experience in a graphic user interface, including security measures.
2.HTML5 and CSS3 supports most of the client-side functionality provided by other application frameworks.
The server side needs programming mostly related to data retrieval, security and performance. Some of the tools used here include ASP, Lotus Notes, PHP, Java and MySQL. There are certain tools/platforms that aid in both client- and server-side programming. Some examples of these are Opa and Tersus.