How to handle MS Dataset object with PEAR SOAP client ?

[sava]

How to handle MS Dataset object with PEAR SOAP client ?
Any explanation or examples will be thankful.


Code:
$wsdlObj = new SOAP_WSDL($wsdlUrl);
$clientObj = $wsdlObj->getProxy();

$response = $clientObj->Login($dataSet); ????




Thanks !