Zend Framework

class Application_Form_Search extends Zend_Form
{
	functions init(){
	$this->setMethod('post')
		->clearDecorators()
		->addDecorator('FormElements')
		->addDecorator('HtmlTag',array('tag'=>'div', 'class' => 'zend_form'))
		->addDecorator('Form');
			
	$this->addElement('text', 'keyword', array(
		'label'      => 'Keyword',
		'required'   => true
	));
	
	$this->addElement('submit',
		'submit',
		array(
			'label'    => 'Search',
			'required' => false,
			'ignore'   => true
		)
	);
	}
}

public function indexAction()
{
	$this->view->searchForm = $this->_searchForm;
	
	$request = $this->getRequest();
	$params = $request->getPost();
	
	if($request->isPost() && $this->_searchForm->isValid($params)){
		unset($params['submit']);
		$this->_helper->Redirector->setGotoSimple('search', null, null, $params);
	}else{
		$this->view->data = $this->_mapper->fetchAll();
	}
}

public function searchAction()
{
	$request = $this->getRequest();
	$params = $request->getParams();
	
	$this->view->data = $this->_mapper->search($params);
	$this->view->searchForm = $this->_searchForm->populate($params);
	
	$this->render('index');
	
}