如何从php调用我的asp.net Web服务？

Question

我有一个在asp.net中创建并在iis 5.1中发布的Web服务.现在我想从php环境调用这个Web服务.实际上我的web服务获取一个字符串作为参数并返回相同的字符串.但是一直,返回的字符串为空或null.我无法从php发送字符串值到asp.net web服务...

这是我在asp.net中创建的Web服务

namespace PRS_WS
{
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    // [System.Web.Script.Services.ScriptService]
    public class prs_point : System.Web.Services.WebService
    {
        [WebMethod]
        public string testAssignment(string inputData)
        {
            return inputData;           
        }
    }
}

而且,这是我调用上述asp.net Web服务的php代码...

<?php
       require_once('nusoap/lib/nusoap.php');
       $wsdl="http://localhost/prs_point/prs_point.asmx?WSDL";
       $str1="";
       $str1="Hello from php";

        $client = new soapclient($wsdl,'wsdl');
        $result=$client->call('testAssignment',$str1);

         foreach($result as $key => $value)
        {
              echo "<br/>Response ::::: $value";
         }
?>  

我不知道php端还是asp.net端需要进行哪些更改？...请指导我解决这个问题...

Answer 1

这段代码对我来说很好......

<?php

require 'nusoap/lib/nusoap.php';
$client = new nusoap_client('http://localhost/prs_point/prs_point.asmx?WSDL', 'WSDL');


$error = $client->getError();
if ($error) {
    die("client construction error: {$error}\n");
}

$param = array('inputData' => 'sample data');
$answer = $client->call('testAssignment', array('parameters' => $param), '', '', false, true);

$error = $client->getError();
if ($error) {
    print_r($client->response);
    print_r($client->getDebug());
    die();
 }

 print_r($answer);

 ?>