[phpxmlrpc] How to parse the xml response returned from send

After I execute the send method and how can I parse the response to check if errors occurred or extract specific values? I can't really find an example of how to do this. Everything works great but I need to extract values from the response. Can the response be converted to a PHP array and extra

[phpxmlrpc] php_xmlrpc_decode() doesn't return anything

The method executes perfect and does what it should. But it always returns a 'XML error at line 1, check URL' at the end if it works. I've got debug mode set to 2 to show everything. I'm not sure what to do since it works but I need to extract the 'id' field returned. The php_xmlrpc_decode() does