title: Use of undefined constant __DIR__
body: <p>I am getting following error:</p>
  
  <blockquote>
    <p>Notice: Use of undefined constant <code>__DIR__</code> - assumed <code>'__DIR__'</code> in
    /home/a2708294/public_html/firebase/index.php on line 58</p>
  </blockquote>
  
  <p><strong>Line:58</strong></p>
  
  <pre><code>require_once __DIR__ . '/firebase.php';
  require_once __DIR__ . '/push.php';
  </code></pre>