sts, a response can be one of the seven data types listed in the  <a href="#datatypes">Data Types</a>  section.</p>


<h2>Sending an Error Response</h2>

<p>If you need to send the client an error response you will use the following:</p>

<code>return $this->xmlrpc->send_error_message('123', 'Requested data not available');</code>

<p>The first parameter is the error number while the second parameter is the error message.</p>






<h2>Creating Your Own Client and Server</h2>

<p>To help you understand ever