title: PHP SOAPClient Request Issue
body: <p>I am trying to call this web service http:// 115. 186. 182.11/csws/Service.asmx?op=SendSMS  with following PHP code but it gives me exception  Error mate in Script: Server was unable to process request. ---> Object reference not set to an instance of an object.</p>
  
  <p>Will highly appreciate your help on this.</p>
  
  <pre><code>try     {       
  
  $client = new SoapClient("http://115.186.182.11/csws/Service.asmx?wsdl"); 
  
  $method = 'SendSMS';
  
  $params = array(
  new SoapParam('xxxxx', 'Src_nbr'),
  new SoapParam('xxxxxx', 'Password'),
  new SoapParam('xxxxx', 'Dst_nbr'),
  new SoapParam('xxxxx', 'Mask'),
  new SoapParam('Message is test message', 'Message')
  );
  
  $result = $client-&gt;__call($method,$params);
  
  }
  catch(SoapFault $e){
  echo "Error mate in Script: " . $e-&gt;getMessage();
  }
  
  echo "&lt;pre&gt;";
  var_dump($result);
  echo "&lt;/pre&gt;";
  
  $xmlobj = simplexml_load_string($result);
  print_r($xmlobj);
  </code></pre>
  
  <p>FOllowing is the specification...</p>
  
  <pre><code>POST /csws/Service.asmx HTTP/1.1
  Host: 115.186.182.11
  Content-Type: text/xml; charset=utf-8
  Content-Length: length
  SOAPAction: "http://tempuri.org/SendBulkSMS"
  
  &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"&gt;
    &lt;soap:Body&gt;
      &lt;SendBulkSMS xmlns="http://tempuri.org/"&gt;
        &lt;Src_nbr&gt;string&lt;/Src_nbr&gt;
        &lt;Password&gt;string&lt;/Password&gt;
        &lt;Dst_nbr&gt;xmlxml&lt;/Dst_nbr&gt;
        &lt;Mask&gt;string&lt;/Mask&gt;
        &lt;Message&gt;string&lt;/Message&gt;
      &lt;/SendBulkSMS&gt;
    &lt;/soap:Body&gt;
  &lt;/soap:Envelope&gt;
  HTTP/1.1 200 OK
  Content-Type: text/xml; charset=utf-8
  Content-Length: length
  
  &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"&gt;
    &lt;soap:Body&gt;
      &lt;SendBulkSMSResponse xmlns="http://tempuri.org/"&gt;
        &lt;SendBulkSMSResult&gt;
          &lt;string&gt;string&lt;/string&gt;
          &lt;string&gt;string&lt;/string&gt;
        &lt;/SendBulkSMSResult&gt;
      &lt;/SendBulkSMSResponse&gt;
    &lt;/soap:Body&gt;
  &lt;/soap:Envelope&gt;
  </code></pre>