require_once 'Zend/Loader/Autoloader.PHP' //载入自动加载类
$loader = Zend_Loader_Autoloader::getInstance();//自动实例化
$loader->registerNamespace('Application_');//注册命名空间（只有系统默认的，和注册的才可以被自动载入）
$loader->registerNamespace(array('Foo_','Bar_')); //多个命名空间的注册方法
$loader->setFallbackAutoloader(true); //一个增加消耗的方法，不需要命名空间，直接载入所有类(不被推荐使用)

set_include_path(implode(PATH_SEPARATOR,array(
realpath(APPLICATION_PATH . '/../library'),
realpath(APPLICATION_PATH . '/forms/'),
get_include_path(),
)));
//这里我们包含了我们的forms目录，方便程序的被载入

PHP
class Application_Form_Guestbook extends Zend_Form
{
public function init()
{
// Set the method for the display form to POST
$this->setMethod('post');//设置提交方式 // Add an email element
$this->addElement('text','email',array(//原件的类型，名词，和一些其他信息的定义
'label' => 'Your email address:',
'required' => true,
'filters' => array('StringTrim'),
'validators' => array(
'EmailAddress',
)
)); // Add the comment element
$this->addElement('textarea','comment',array(
'label' => 'Please Comment:',
'validators' => array(
array('validator' => 'StringLength','options' => array(0,20))
)
)); // Add a captcha
$this->addElement('captcha','captcha',array(
'label' => 'Please enter the 5 letters displayed below:',
'captcha' => array(
'captcha' => 'Figlet',
'wordLen' => 5,
'timeout' => 300
)
)); // Add the submit button
$this->addElement('submit','submit',array(
'ignore' => true,
'label' => 'Sign Guestbook',
)); // And finally add some CSRF protection
$this->addElement('hash','csrf',
));
}
}

PHP
class GuestbookController extends Zend_Controller_Action
{
// snipping indexAction()...
public function signAction()
{
$request = $this->getRequest();//获取接受到得信息
// include_once("../application/forms/Guestbook.PHP"); 手动加载类，只有不能自动载入时，才需要
$form = new Application_Form_Guestbook;//实例化这个方法 if ($this->getRequest()->isPost()) {//如果是POST传递的结果
if ($form->isValid($request->getPost())) {//判断传递是否有效
$comment = new Application_Model_Guestbook($form->getValues());
$mapper = new Application_Model_GuestbookMapper();
$mapper->save($comment);
return $this->_helper->redirector('index');
}
} $this->view->form = $form;//将表单赋值给试图
}
}

Please use the form below to sign our guestbook!
PHP
$this->form->setAction($this->url());
echo $this->form;