how to authenticate web service url in php(nusoap)

Question

I just learn how to create a web service and consume it using PHP and (nusoap) . now I am confused on how to authenticate a web service URL.

For example I have a web service that has a URL like below

       <?php
  include_once './lib/nusoap.php';
   $server = new nusoap_server();
  //print_r($server);
 $server->register('abc');
 function abc()
  {
    return 'welcoem';
  }
  $server->service($HTTP_RAW_POST_DATA);
  exit();
 ?>

 localhost/nusoap/webservice91.php

So I give it to a client. but I want to know is that particular person is using web service to whom I give them a URL.

How to get to know if another person is using our web service.

Answer 1

There are several options technically:

1. HTTP authentication
2. Soap-based authentication via soap headers.
3. Roll-your-own authentication with username/password or token being embedded in the soap body as part of the actual request.