Zend Rest Client问题

class ReservationController extends Zend_Controller_Action
{
    public function init()
    {
    }

    public function indexAction()
    {
        $this->_helper->viewRenderer->setNoRender();
        $this->_helper->layout->disableLayout();

        $soap = new Zend_Rest_Server();
        $soap->setClass('Someclass');

        $soap->handle();
    }
}

<?php

class IndexController extends Zend_Controller_Action
{
private $_URI = "http://www.mysite.local/crm/reservation";
    public function clientAction() {
        $this->_helper->viewRenderer->setNoRender();
        $this->_helper->layout->disableLayout();
        $client = new Zend_Rest_Client($this->_URI);
       echo $client->sayHello('nisanth')->get();

    }

}

<?php
class Someclass
{
/**
* Say Hello
*
* @param string $who
* @return string
*/
function sayHello($who)
{
    return "Hello $who";

}
}