How to create simple SOAP request using PHP?

[rahul.pragma]

Hello,

I tried to create a SOAP request but could not succeed.
SOAP WADL url is http://www.mobipost.com.au/httpapi/Messaging.asmx?WSDL

AND request should be like:

<?xml version="1.0" encoding="utf-8"?>
<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/">
  <soap:Header>
    <AuthenticationHeader xmlns="http://messaging.mobipostapi.thirdscreen.com.au/">
      <UserName>SAMPLE_USER</UserName>
      <Password>SAMPLE_PASS</Password>
    </AuthenticationHeader>
  </soap:Header>
  <soap:Body>
    <SendSMSToContacts xmlns="http://messaging.mobipostapi.thirdscreen.com.au/">
      <oSMS>
        <MessageText>THIS IS MESSAGE</MessageText>
      </oSMS>
      <ContactIDs>
        <int>123456789</int>
        <int>987654321</int>
      </ContactIDs>
    </SendSMSToContacts>
  </soap:Body>
</soap:Envelope>

I tried:

$url = 'http://www.mobipost.com.au/httpapi/Messaging.asmx?WSDL';
$client = new SoapClient($url);
$result = $client->AuthenticationHeader(array('UserName' => 'SAMPLE_USER','Password' => 'SAMPLE_PASS'));
$result = $client->SendSMSToContacts(array('MessageText' => 'THIS IS MESSAGE'));
$result = $client->ContactIDs(array('123456789', '987654321'));

But it shows Error:

Fatal error: Uncaught SoapFault exception: [Client] Function ("AuthenticationHeader") is not a valid method for this service in D:\xampp\htdocs\globalmobile\send_message_v2.php:26 Stack trace: #0 D:\xampp\htdocs\globalmobile\send_message_v2.php(26): SoapClient->__call('AuthenticationH...', Array) #1 D:\xampp\htdocs\globalmobile\send_message_v2.php(26): SoapClient->AuthenticationHeader(Array) #2 {main} thrown in D:\xampp\htdocs\globalmobile\send_message_v2.php on line 26

Can you please help me to create valid SOAP request to communicate with WSDL server?

Thank you in advance.

[pritaeas]

AuthenticationHeader is a struct to hold data, not a function. What does the documentation say?

[rahul.pragma]

The problem there is no documentations and I am beginner with SOAP. Can you please help me how to authenticate header and send body parameters using above XML schema?

Thanks in bunch.

[pritaeas]

Without documentation, stating which functions need to called in which order, I can't help.