Over the course of the next two movies, we're going to be talking about numbers. …And we're going to start out by first talking about Integers. …Integers are whole numbers, so that's numbers like 1, 2, 3, 4, 5, as well as …negative 1, negative 2, negative 3, and so on. …I think what a number is, is pretty intuitive. …We all kind of have an idea of that by now. …But we do still need to see how we work with them in PHP. …Let's create a new document we can work with. …I'm going to open up basic.HTML and I'm going to do just Save As. …I'm going to change this one to be integers.PHP. …Make sure you've got PHP at the end. Integers.…

Now, we've seen how we could just have our basic PHP tags and assign a variable. …var1 equals 3, and var2 equals 4. And we saw how we can add those together …and we can echo back the result. Let me go ahead and just show you a bit …more math. We're going to be echoing the result back …from adding 1 plus 2 plus the value of var1. …That's 3, and then multiplying that by var2. …