[fw-general] Zend Form, validate/check whether extra elements have been added

[Andrei Iarus]

Hello,
 
Is there any integrated solution (in ZF) to throw Exceptions (or simple check), 
when some extra parameters have been passed to $form->validate( $postParams ) ??
 
Should we rely on Zend Form that no extra parameters get to our models?
 
Thanks.