title: Zend Framework MVC redirecting to different controller and action
body: <p>i'm trying to work out how i can stop zend or redirect zend to go to a different zend controller and action if a check within the boot strap fails.</p>
  
  <p>for example a get variable does not exist or more likely a session does not exist meaning the user must log in.</p>
  
  <p>so the user had originally requested index/someaction</p>
  
  <p>but i want them to go to login/index</p>
  
  <p>within my boot strap i would place the condition and then change the controller action to view.</p>
  
  <p>if i'm doing this in a way that is not standard can anyone direct me to documentation on the best practice ?</p>
  
  <p>zend novice</p>