title: validate form which is conditional on multiple elements (they all can not be empty)
body: <p>Does anyone have a way to validate a zend form, within the form? In my case multiple elements can not be empty? </p>
  
  <p>In Symfony, if I remember right, there is post validator which you can get all the submitted form values and use those to validate. I am not able to find anything like that with Zend (1.10).</p>
  
  <p>Any advice is greatly appreciated!</p>