<?php
 
$this->form->setAction($this->url(array('action' => 'index')));
echo $this->form;?>

<?php
 
class IndexController extends Zend_Controller_Action
{
 
        public function indexAction()
    {//echo "login controller";
	 $form = new Default_Form_Index();
         $this->view->form = $form;
 
       //	echo "Our home page stuff";
    }

class Default_Form_Index extends Zend_Form
{
    /**
     * init() is the initialization routine called when Zend_Form objects are
     * created. In most cases, it make alot of sense to put definitions in this
     * method, as you can see below.  This is not required, but suggested.
     * There might exist other application scenarios where one might want to
     * configure their form objects in a different way, those are best
     * described in the manual:
     *
     * @see    http://framework.zend.com/manual/en/zend.form.html
     * @return void
     */
    public function init()
    {
        // Set the method for the display form to POST
        $this->setMethod('post');
 
        // Add an email element
        $this->addElement('text', 'email', array(
            'label'      => 'Your email address:',
            'required'   => true,
            'filters'    => array('StringTrim'),
            'validators' => array(
                'EmailAddress',
            )
        ));
 
        // Add the comment element
        $this->addElement('textarea', 'comment', array(
            'label'      => 'Please Comment:',
            'required'   => true,
            '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:',
            'required'   => true,
            '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', array(
            'ignore' => true,
        ));
    }
}

<?php
 
class IndexController extends Zend_Controller_Action
{
  public function indexAction()
  {
    $form = new Default_Form_Index();
    $request = $this->getRequest();
 
    //Check if we have post data
    if( $request->isPost() )
    {
      //If the form is NOT valid redisplay it with errors
      if( !$form->isValid($request->getPost() ) )
      {
        $this->view->form = $form;				           		
        return;
      }
 
      //Form passes validation and filtering
      //Do something with the data.
      $data = $form->getValues();
 
      //Maybe a redirect or change what view is getting rendered?
 
      //Just to stop execution after processing the form return;
      //return; 
    }
 
    //If no post data assume we're just displaying the form to the user
    $this->view->form = $form;
  }
}