| Remote Control |

If you're familiar with C or C++, you've probably already heard of Remote Procedure Calls - they're the framework by which procedures on a server are remotely executed  by other clients on the network. RPCs are interesting, because they make it possible to design services that can be used independent of the operating environment of the client. So long as both client and server understand the RPC protocol, they can communicate with each other to execute commands and process return values.

Now, you might not know this, but your favourite language and mine, PHP, has been shipping with support for XML-based Remote Procedure Calls since PHP 4.1.0. This support makes PHP ideal for developers looking to design the next generation of cutting-edge Web services, and to create network-based applications using existing, widely-used protocols like XML and HTTP.

The only problem? Not too many people know how to do it.

That's where this tutorial comes in. Over the next few pages, I'll be demonstrating how you can use PHP, in combination with the ultra-cool PEAR XML_RPC package, to add powerful new capabilities to your Web applications. Keep reading.

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