Zend_Form and xhtml strict validation

When you use Zend_Form (or another Zend Framework component generating output) to display your forms, you want get valid xhtml code, depends on xhtml doctype. For instance, when using Strict tags need to be closed (/>).

To accomplish this, we need to set Doctype on View object (we can do this in Bootstrap)

$view->doctype('XHTML1_STRICT');

Now every xhtml code generated with Zend Framerwork component will be XHTML Strict valid.