Encoding arbitrary nested PHP arrays

Hello everybody, I'm new to the list and very happy to see we've now got quality libraries for working with SOAP using PHP. I've been studying the code of the SOAP pear module from CVS and can't figure out how to correctly encode an arbitrary array with elements that can be simple data types like integers and strings as well as other arrays. I've been playing with the decoding bits and it's pretty advanced, so decoding seems not to be a problem. My question is: If I have an arbitrary PHP array holding more simple types and other PHP arrays, how do I correctly generate a SOAP message with PEAR's SOAP module using SOAP's Schema encoding???? I've seen there are some flags you can turn ON/OFF on the libraries and also that the current implementation prefers to map complex types into PHP Objects. My goal is to avoid having to previously define a class for handling the Struct, since it's the great flexibility of PHP's array what I use in my application and now all I need is to transport this arrays from one place to another using SOAP for RMI. Thanks a lot, Antonio Ognio Lima-Peru