<?	require_once("XML/RPC/Server.php");
	require_once("XML/RPC.php");
	
	function proc($params)
	{
		$arg1=$params->getParam(0)->getval();//В любом случае будет присвоена строка			
		return new XML_RPC_Response(new XML_RPC_Value("Значение: [$arg1] Тип: [".gettype($arg1)."]",'string'));
	}
		
	$dispMap=Array("myproc"=>
					Array(
						"function" => "proc",					
						"signature"=>Array(
								Array('string','int'),								
								)		
					)					
			);	
	
	$srv=new XML_RPC_Server($dispMap,1,0); ?>

<?xml version="1.0" encoding="UTF-8"?>
<methodCall>
  <methodName>myproc</methodName>
  <params>
    <param>
      <value><int>1</int></value>
    </param>    
  </params>
</methodCall>

<?xml version="1.0" encoding="UTF-8"?>
<methodResponse>
   <params>
      <param>
         <value><string>Значение: [1] Тип: [string]</string></value>
      </param>
   </params>
</methodResponse>

<?xml version="1.0" encoding="UTF-8"?>
<methodCall>
  <methodName>myproc</methodName>
  <params>
    <param>
      <value><int>1.234567</int></value>
    </param>    
  </params>
</methodCall>

<?xml version="1.0" encoding="UTF-8"?>
<methodResponse>
   <params>
      <param>
         <value><string>Значение: [1.234567] Тип: [string]</string></value>
      </param>
   </params>
</methodResponse>