php WSDL (SOAP) client

我在 php 中与 SOAP 服务通信时遇到问题：我的客户端代码：

$url = "https://XXXX.com/DataService.svc?singleWsdl";
$client = new SoapClient($url);
var_dump($client->__getFunctions()); // ExportScheduleData(ExportScheduleData $parameters)
$aclient->ExportScheduleData(array());

我得到了：

Uncaught SoapFault exception: [HTTP] Cannot process the message because the content type 'text/xml; charset=utf-8' was not the expected type 'application/soap+xml; charset=utf-8'.

将 SOAP 版本更改为 1.2：

$client = new SoapClient($url, array('soap_version' => SOAP_1_2));

并且请求无法完成：当我刷新页面时，它仍然处于闲置状态 - 任何错误左右。

===== 更新 =====

看起来服务使用 WS-Security。它们提供证书文件，但是：

Warning: SoapClient::SoapClient(): Unable to set local cert chain file `C:'xampp'htdocs'workspace'sandbox.dev'public'sandbox.cer'; Check that your cafile/capath settings include details of your certificate and its issuer in C:'xampp'htdocs'workspace'sandbox.dev'public'sandbox.php on line 34