Bootstrap Class

What is the role of bootstrap?

Bootstrap class defines what resources and component has to be initialized while loading the zend application.
By default front_controller is initialized.

How to use Doctype resource in zend?

- To use this doctype resource in the application we have to define doctype using view resource in the bootstrap class like


protected function _initDoctype()
{
        $this->bootstrap('view');
        $view = $this->getResource('view');
        $view->doctype('XHTML1_STRICT');
}


Now use at the top given line in the layout.phtml file. 
  echo $this->doctype() ?>