Untitled

<?php
  require("components/commentsystem.php");
  $commentsystem = new CommentSystem();

  $site = $_GET['site'];
  if($site == 'bugtracker')
  {
    require("components/bugtracker.php");
    $component = new Bugtracker();
    $component.initialize_from($_GET);
  }
  else if($site == 'wiki')
  {
    require("components/wiki.php");
    $component = new Wiki();
    $component.initialize_from($_GET);
  }
  [...]
?>

<head>
  <title>Awesome Website - <?php echo $component.get_title(); ?></title>
  [...]
</head>
<body>
  <div id="sidebar">
    [...]
  </div>
  <div id="content">
    <h1><?php echo $component.get_heading(); ?></h1>
    <?php
      $component.render_content();
      $commentsystem.render_thread();
      $commentsystem.render_comment_form();
     ?>
  </div>
</body>