I don’t post nearly enough programming stuff on this site so no better time than now to try and get back into the habit. MBoffin has a good tutorial about how to create a XML-RPC pinging class from scratch and serves as a good tutorial on how to tackle anything new if you wish to teach yourself.
As he notes you could just use the XML-RPC.Net library, but he wished to learn some things about XML-RPC on his own so he created his own methods. Even though it isn’t the best method for programming it, it certainly is a good method to learn.
Yes, I can’t stress enough that this is not the best method of programming this type of thing. For one thing, there are “OOP best practices” I’m not following. This was an activity in problem-solving more than anything. As mentioned, if you actually are going to implement XML-RPC functionality in your code, the XML-RPC.Net library is definitely the way to go.