title: How to prevent browser from refilling form data when navigating back
body: <p>I have a php form that submits data to a database. When the form has been successfully filled out and the data submitted, the form clears because of the page refresh. When the user hits the back button on the browser, the data comes back.</p>
  
  <p>Is there a php function that will prevent the caching of this data?</p>