This tool allows you to defing a description of an XML file format, with more detail about how data will be represented once converted to classes than XML Schema allows.
The best way to learn how to write the code is probably to look at the examples, and click on the 'run' button (green triangle) to generate PHP code..
There is no data permenantly stored on this server, and at the moment thsi code generator does not include the source in the output, sp remember to keep a copy of your input.