Calling ASP .NET web service from php client

Question

I have a simple ASP .NET web service running and I want call it from a php client. I m using nusoap soap client.

The following is the client side php code:

<?php
require_once('lib/nusoap.php');       
$wsdl="http://localhost:64226/Service1.asmx?wsdl";
$client=new soapclient($wsdl, 'wsdl');  
$param=array('number1'=>'2', 'number2'=>'3');
echo $client->call('add',$param);
?>

The web methods I have created in web service are as follows:

namespace WebService3
{
/// <summary>
/// Summary description for Service1
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ToolboxItem(false)]
public class Service1 : System.Web.Services.WebService
{

    [WebMethod]
    public string HelloWorld()
    {
        return "Hello World";
    }

    [WebMethod]
    public string add(int x, int y)
    {
        int z = x + y;
        return z.ToString();
    }
}
}

However when I run the above php code it does not return the added value of the passed parameters. Instead it previews the word 'Arrays'

I m not experienced in php programming. Am I doing something wrong the above codes? Need a quick solution to resolve this and invoke the web service from php.

Thanks in advance !

Answer 1

Substitute this line

echo $client->call('add',$param);

by this one

echo $client->__soapCall('add', $param);

See also this question.