title: Getting users information from moodle
body: <p>How to get the section's user information (like name, password)? Is there any method that returns it?</p>
  
  <p>I'm trying the function "core_user_get_users_by_field", but it isn't works. That's I've done:</p>
  
  <p>String serverurl = url + "/webservice/rest/server.php" + "?wstoken=" + token + "&amp;wsfunction=" + functionName;</p>
  
  <p>obs: The server was constructed using REST.</p>