Clarizen APi & PHP

Hello,

I'm trying to create a support form for our website, to use for reporting bugs and suggestions. These issues should be posted to clarizen via your API for easy management. We're using PHP. I've read the documentation and the PHP example on page 6 of your Web Services Guide PDF, but i'm still unable to create a valid request.

I can't find what requests are used for issues submit and how to form such request and put it to

$request[] = ... //Create additional request to the API

$result = $client->Execute(array("request"=>$request));

can anyone give me a helping hand?

thanks a lot