Forum Post: how to connect with microsoft dynamic nav

I am trying to connect with microsoft dynamic nav using php script . Please suggest me php library to connect with microsoft dynamic nav and also explain the meaning of following  code which belong to older version post of php library.

stream_wrapper_unregister('http'); 
// we register the new HTTP wrapper 
stream_wrapper_register('http', 'NTLMStream') or die("Failed to register protocol");

// Initialize Soap Client 
$baseURL = 'http://localhost:7047/DynamicsNAV/WS/'; 
$client = new NTLMSoapClient($baseURL.'SystemService');

I want to post data into customer contact with conversation of customer.

Thanks 

Sudhir Singh