I'm confused about the REST services.
I have a database online and some php scripts.
A script is called "programma.php" and it's accessible at the URL: "www.example.org/programma.php"
This script can be invoked with a request HTTP:
This is probably best described as a partial implementation of a RESTful service. You also need to provide the list of acceptable transitions in the GET request so that the application can decide dynamically what it can do. It would depend a little more on the actual architecture and separation of responsibility that the system uses as well. But it is essentially a REST implementation, yes.