php - 如何将 XML 数据请求提交给 WSDL 服务器？

Question

我想将 XML 数据从 Web 服务客户端提交到 WSDL 服务器。这是 WSDL 文件： http: //www.nemsis.org/v3/downloads/NEMSIS_V3_12_core.wsdl 我正在调用函数“SubmitData”，但它给出了错误::stdClass Object ([requestType] => SubmitData [requestHandle] => 服务器致命错误 #11。SOAP 消息中没有有效负载。请确保 SOAP 消息已正确编译。[statusCode] => -101 )

这是我写的代码::

<?php
    $xml = file_get_contents($_SERVER['DOCUMENT_ROOT'].'/test/nemsis/data.xml');
    try{
        $sClient = new SoapClient('https://www.nemsis.org/NemsisV3Validator/NemsisWsService?wsdl');
        $parameters->username = "******";
        $parameters->password = "*********";
        $parameters->organization = "Organisation";
        $parameters->requestType = "SubmitData";
        $parameters->submitPayload = $xml;
        $parameters->requestDataSchema = "62";
        $parameters->schemaVersion = "3.2.6";
        $parameters->additionalInfo = "Hakuna matata";
        $response = $sClient->SubmitData($parameters);
        print_r($response);
    } 
    catch(SoapFault $e)
    {
        var_dump($e);
    }
?>