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How to Call and Create a Web Service using SOAP client

How to Call and Create a Web Service using SOAP client

Web Services are developed to interact different platforms in a single synchronized working environment uses XML to code and to interpret data, and SOAP to transport. With Web services you will be able to ex-change data between different apps, web, database and various platforms.

Now let us have a common database and we have requirement to update it day by day. We want to use this database with multiple web application and different platform. So we have decided to make a web service to access our common database with multiple platform and application.

Today I am writing for creating a simple web service which help you initiating for taking your first step to create a web service specially for PHP beginners.

What is a Webservice :-

Before start your first program you need to know what is web service?

A web service is a medium to communicate between two applications. It is a collection of functions, programs, messages etc. which return some information.

It is like a client server architecture that is based on request and response.

Steps to create a web service using SOAP client:-

1) Download NuSOAP libraries from site http://sourceforge.net/projects/NuSOAP/

NuSOAP (Nusphere PHP  web service) is a set of php class where no php extensions are requires. It allows to create and consume/call a web service that are based on SOAP 1.1,WSDL 1.1 and HTTP 1.0/1.1.

2)  Create a folder in www dir (if using wamp)

Wamp/www/webservice

3) Put NuSOAP library in this folder i.e.

Wamp/www/webservice/NuSOAP

4) Now create your server.php file which contain your functions or database script. Here we are just going to print simple This is my first web service. Save this file in NuSOAP folder.

Wamp/www/webservice/NuSOAP/server.php

Code: Server.php

<?php
// include NuSOAP.php which contain SOAP client and server classes
require_once ("lib/NuSOAP.php");
// create an object for SOAP_server class
$server = new SOAP_server();
$server->configureWSDL("Testing WSDL ","urn:Testing WSDL ");
//register your method/function i.e getwebservice here
$server->register("getwebservice",array("name" => "xsd:string"),array("return" => "xsd:string"),"urn:webservice","urn:webservice#getwebservice");
//create function that return your information on client side
function getwebservice($name) {
$myname    =    "This is my <b>".$name . "</b>";
return $myname;
}
$HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA : '';
$server->service($HTTP_RAW_POST_DATA);
?>

5) Now test your server.php page

Run at your localhost

http://localhost/webservice/NuSOAP/server.php

You will see this window.

01-web-service-testingNow click on getwebservice. You will see this type of window.

02-web-service-testing

Note: This is only for test your server.php file.

6) Now create client.php file

Wamp/www/webservice/NuSOAP/client.php

Code: client.php

<?php
//include NuSOAP.php which contain SOAP client and server classes
require_once ('lib/NuSOAP.php');
//create SOAP client object ,put your server file path
$client = new SOAPclient("http://localhost/webservice/NuSOAP/server.php?wsdl");
//call method/function which is defined in our server page
$result    =    $client->getwebservice("first webservice");
echo "<b>";
print_r($result);
echo "</b>";
?>

Now test your client.php

http://localhost/webservice/NuSOAP/client.php

You will see, your code is running successfully

03-web-service-testing

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About Akshma Sharma

Web & PHP Developer, with a zeal experience of web and application development on various platform like Android, iOS, PHP, MySQL, CMS, Wordpress, Joomla, Magento and Drupal.

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