title: Detect if user is a first time visitor, if so, re-direct to page, if not, re-direct to another page
body: <p>Is there a way to detect if a user is visiting my website for the first time, and if so, redirect them to a page, for example, index-first-time-visitor.php - and if they are not a first time visitor, it sends them to index.php</p>
  
  <p>If there is a way to do this, please demonstrate how.</p>