Access/Invoking Asp.Net WebService from Php Client

Creating and consuming webservices in asp.net is an easy task with the help of Visual Studio. Although most of the scenarios I worked with were always with asp.net applications consuming asp.net web services, which makes things even easier. This week however I learned something new when I had to invoke a PHP client application to connect to my asp.net webservices.

Asp.Net Web Service

/// <summary>

/// Summary description for WebService1/// </summary>[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 WebService1 : System.Web.Services.WebService{
[WebMethod]
public string HelloWorld(string StrValue){

return StrValue;}
}

And I host this web service in my localhost using IIS, and when I ping this url in explorer I have wsdl like this.

<?xml version="1.0" encoding="utf-8"?>
<wsdl:definitions xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://tempuri.org/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" targetNamespace="http://tempuri.org/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
  <wsdl:types>
    <s:schema elementFormDefault="qualified" targetNamespace="http://tempuri.org/">
      <s:element name="HelloWorld">
        <s:complexType>
          <s:sequence>
            <s:element minOccurs="0" maxOccurs="1" name="StrValue" type="s:string" />
          </s:sequence>
        </s:complexType>
      </s:element>
      <s:element name="HelloWorldResponse">
        <s:complexType>
          <s:sequence>
            <s:element minOccurs="0" maxOccurs="1" name="HelloWorldResult" type="s:string" />
          </s:sequence>
        </s:complexType>
      </s:element>
    </s:schema>
  </wsdl:types>
  <wsdl:message name="HelloWorldSoapIn">
    <wsdl:part name="parameters" element="tns:HelloWorld" />
  </wsdl:message>
  <wsdl:message name="HelloWorldSoapOut">
    <wsdl:part name="parameters" element="tns:HelloWorldResponse" />
  </wsdl:message>
 
  <wsdl:portType name="WebService1Soap">
    <wsdl:operation name="HelloWorld">
      <wsdl:input message="tns:HelloWorldSoapIn" />
      <wsdl:output message="tns:HelloWorldSoapOut" />
    </wsdl:operation>
  
  </wsdl:portType>
  <wsdl:binding name="WebService1Soap" type="tns:WebService1Soap">
    <soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
    <wsdl:operation name="HelloWorld">
      <soap:operation soapAction="http://tempuri.org/HelloWorld" style="document" />
      <wsdl:input>
        <soap:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal" />
      </wsdl:output>
    </wsdl:operation>
   
  </wsdl:binding>
  <wsdl:binding name="WebService1Soap12" type="tns:WebService1Soap">
    <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" />
    <wsdl:operation name="HelloWorld">
      <soap12:operation soapAction="http://tempuri.org/HelloWorld" style="document" />
      <wsdl:input>
        <soap12:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap12:body use="literal" />
      </wsdl:output>
    </wsdl:operation>   
  </wsdl:binding>
  <wsdl:service name="WebService1">
    <wsdl:port name="WebService1Soap" binding="tns:WebService1Soap">
      <soap:address location="http://localhost:7777/WebService1.asmx" />
    </wsdl:port>
    <wsdl:port name="WebService1Soap12" binding="tns:WebService1Soap12">
      <soap12:address location="http://localhost:7777/WebService1.asmx" />
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>

As you can see there’s nothing to it.

The PHP code is not much harder once you know, First you have to have test the requested url is working or not which has the webservices infrastructure for PHP. Then you code a simple client to access our service.

<?php

$client = new SoapClient("http://localhost:7777/WebService1.asmx?wsdl");
$strRestult = $client->HelloWorld(array('StrValue' => 'ICS'))->HelloWorldResult;
echo "Welcome to " . $strRestult;

?>

Then run this have get a result from .Net WebService.