I somewhat agree with village idiot. I consider PHP to be a scripting languages (a powerfull one at that) and you could create programs out of it. It just means what your definition for a program is.

This is how I think about it: I have an application. This application has a program in it. This program runs and gives you your desired results.

So when I create an desktop application I use c#/vb to create a program for it.

When I create a web application I use asp.net/php to create the program for it.

ASP.NET follows this kindof. In asp.net you can create an web application which needs to be compiled before throwing it on the server. For example if you have classes and you upload the .cs class, effects won't actually take place unless you compile it first (either locally or on the server).

About HTML and css, I am not sure where I stand on this. I usually just call them coding but they could also fall in the category of "scripting"