1. Learn PHP. What is PHP? PHP echo statement, and PHP Variables.

In this screencast, we'll look at what PHP is, in a very simple way. Unlike writing .html pages, with PHP, we'll need to upload our files to a server with PHP installed to view our output. For now, let's think of PHP as a way for our server to generate HTML using whatever criteria we want. For example, we may want PHP to calculate the quantity, price, and tax from a shopping cart. The PHP on the server might send this back to the user as HTML, showing the total price!

In this video, we'll learn about the PHP echo statement. The echo statement is a simple way for us to use PHP to output HTML. We'll also look at PHP variables. Variables might seem like a confusing concept to beginners, but variables will help us with some more complicated PHP script, later on. For example, a number that we assign to a variable might not be known to us until the user selects an option on a previous page.