title: call WSDL by PHP
body: <p>I need to use an WSDL, and call some functions. I need my request will have this format:</p>
  
  <p>
  
  
  
  username
  password
  
  
  
  
  
  
  
  
  
  </p>
  
  <p>I can not get any data back from server, the server can not recognize my transfer parameters. </p>
  
  <p>Thanks for your support.</p>