在SoapClient中使用哪个方法(POST/GET)发送HTTP请求

我不知道我问的问题是否正确!但我认为它的答案将指导我解决我的问题。

我试图通过SoapClient调用一个函数，…这是我的代码的简化版本:

class SOAP_AuthStruct {
    function __construct($user, $pass) {
        $this->Username = strval($user);
        $this->Password = strval($pass);
    }
}

$soap_loc = "SET TO SOAP PATH";
$soap_opts = array (
        'location'   =>  $soap_loc,
        'style'      =>  SOAP_DOCUMENT,
        'use'        =>  SOAP_LITERAL,
        'cache_wsdl' =>  WSDL_CACHE_NONE,
        'exceptions' =>  FALSE,
        'trace'      =>  TRUE
);

$testclient = new SoapClient("soapcall.wsdl", $soap_opts);
$soap_auth = new SOAP_AuthStruct("USERNAME", "PASSWORD");
$soap_header = new SoapHeader($soap_ns,'AuthHeader',$soap_auth,FALSE);
// $a_param is filled with essential values
$soap_param = array("CreateTransaction" => $a_param);

try {
    $result = $testclient->__soapCall("CreateTransaction", $soap_param, NULL, $soap_header, $output_headers);
    echo $testclient->__getLastRequest();
    echo "'n'n";
    echo $testclient->__getLastResponse(); 
    echo "'n'n";
    echo $testclient->__getLastResponseHeaders(); 
    echo "'n'n";
} catch (SoapFault $fault) {
    trigger_error("SOAP Fault: (faultcode: {$fault->faultcode}, faultstring: {$fault->faultstring})", E_USER_ERROR);
}

我有一个正确请求格式的示例，getLastRequest()函数显示请求具有正确的格式…

但是在响应中我有这个错误消息:

HTTP/1.1 405 Method Not Allowed
X-Mashery-Responder: XXXXX.mashery.com
Allow: GET, HEAD, OPTIONS, TRACE
Content-Type: text/html
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Tue, 12 Apr 2011 18:34:29 GMT
Accept-Ranges: bytes
Content-Length: 1293

我认为(我不确定!)可能是SoapClient使用POST方法发送请求，我在响应头中找不到它:"允许:GET, HEAD, OPTIONS, TRACE"

请让我知道如果你有任何解决我的问题!也是我问题的答案!

提前感谢您的帮助和您的时间;)

--------------------------------------------

更新:

OK，现在我知道它正在发送POST请求!

我将这行添加到我的代码中(在调用函数之后)

echo $testclient->__getLastRequestHeaders();

返回:

POST /RimWebAPI/?api_key=APIKEY&sig=SIGNATURE   HTTP/1.1
Host: something.com
Connection: Keep-Alive
User-Agent: PHP-SOAP/5.1.6
Content-Type: text/xml; charset=utf-8
SOAPAction: "SOAP ACTION"
Content-Length: 2344

我还在做，但我会感谢任何帮助或指导!