[Others] 有没有熟悉CI XML-RPC的同学,求助

function server ()
{
$this->load->library('xmlrpc');
$this->load->library('xmlrpcs');

// 设置接口方法集合
$config['functions']['Test'] = array ('function' => 'link.test'); // 平台余额接口
$config['object'] = $this;

$this->xmlrpcs->initialize($config);
$this->xmlrpcs->serve();
}

function index()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('method', 'Request method', 'required');

if ($this->form_validation->run() == false)
{
$this->load->view('index');
}
else
{
$post = $this->input->post(null, true);
$method = $post['method'];
unset ($post['method']);
$request = json_encode ($post);

$this->load->library('xmlrpc');
$server = site_url('main/server');

$this->xmlrpc->server($server, 80);
$this->xmlrpc->method($method);
$this->xmlrpc->set_debug(true);

$request = array ( $request);
//print_r($request);
$this->xmlrpc->request($request);

if (!$this->xmlrpc->send_request())
{
echo $this->xmlrpc->display_error();
}
else
{
echo $this->xmlrpc->display_response();
}
}
}

function test ($request)
{
$this->load->library('xmlrpc');
$a = $request->output_parameters();
//log_message('error',var_export($request, true));
$a = json_decode ($a[0]);
$response = array (a, 'struct');

return $this->xmlrpc->send_response($response);
}