title: Codeigniter Form Validation - how to unset form values after success?
body: <p>I realise this request goes against the example provided in the CI documentation (which advises a separate 'success' page view), but I would like to reutilise a given form view after a form has been successfully submitted - displaying a success message then displaying a blank form. I've tried a few ways unsuccessfully to clear the validation set values (unsetting <code>$_POST</code>, setting rules / fields to an empty array and rerunning validation).  </p>
  
  <p>I could redirect to the same page, but then I'd have to set a session variable to display a success message - which is a messy approach.</p>
  
  <p>Any ideas how to best achieve the above?</p>