使用PHP消费Dynamics GP Wevservice

Question

我正在尝试为M / S Dynamics GP使用.NET Web服务（其中 曾经是大平原）并且得到肥皂故障“反序列化操作'GetCashReceiptByKey'的请求消息的主体时出错” [Soap Fault Message] =＆gt;指定的类型是abstract：name ='OrganizationKey

以下是我的伪代码：

$options = array('login'     => 'loginid',
                'password'   => 'pwd',
                'trace'      => TRUE,
                'exceptions' => TRUE);

$wsdl = 'http://domain/DynamicsGPService.asmx?WSDL';

$client = new SoapClient ($wsdl, $options);

try
{
    $key = array('key' => array('Id' => 'xxxxxxxxxxxxxxx'));
    $company_key = array('Id' => 1);
    $context = array('Context' => array('CurrencyType' => 'Transactional',
                                        'OrganizationKey' => $company_key));
$param = array_merge($key, $context);
$res = $client->GetCashReceiptByKey($param);
}
catch(SoapFault $soapFault)
{
    echo htmlentities($soapFault);
}

请告诉我这里我做错了什么