PHP

You can use PHP to make your production server generate dynamic output. The output can be different each time it is served.

PHP can be embedded in HTML. The Hyper Text Transfer Protocol (HTTP) and the Hyper Text Markup Language (HTML) make it easy to link millions of web pages together into one World Wide Web. PHP makes it possible to serve dynamic information on those webpages.

Dynamic information changes every time it is served. For example, once you select a product you want to purchase, the shopping cart on that page updates and displays that selection. The PHP runs on the server and displays the HTML, CSS and JavaScript in the browser of the audiences computer.

While HTML and CSS control the structure and appearance of a webpage, PHP and JavaScript change the conversation from broadcasting a one to many message into a many to many conversation. While the PHP and JavaScript manage the structure of the conversation, the audience can interact with the web page and influence its content.