title: PHP Bootstrapping Basics
body: <p>I'm writing my first PHP app.  Everyone talks about having a <code>bootstrap.php</code> to initialize your app.  This makes sense and I've put together one that I'm happy with.  There's two things I don't understand, and which no one seems to mention:</p>
  
  <ol>
  <li><p>Where do I call my boostrap from?  Do I include it in every page? Please tell me there's a better way...</p></li>
  <li><p>How do I make it so my bootstrap is not called more often than needed?  I assume it only needs to be called either at the start of the app or the start of a new session.</p></li>
  </ol>