voldern/gist:5717948

## gistfile1.php
<?php
session_start();

if (!empty($_REQUEST['dogs']) && is_array($_REQUEST['dogs'])) {
  $dogs = $_REQUEST['dogs'];
} else {
  $dogs = null;

  header('HTTP/1.0 400 Bad Request', true, 400);
}
?>
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Dogs > cats</title>
  </head>
  <body>
    <?php if ($dogs !== null): ?>
    <ul>
      <?php foreach ($dogs as $index => $dog): ?>
      <li>Dog <?php echo $index + 1 ?>: <?php echo htmlentities($dog) ?></li>
      <?php endforeach ?>
    </ul>
    <?php else: ?>
    <strong>Who let the dogs out?</strong>
    <?php endif ?>
  </body>
</html>
	<?php
	session_start();

	if (!empty($_REQUEST['dogs']) && is_array($_REQUEST['dogs'])) {
	$dogs = $_REQUEST['dogs'];
	} else {
	$dogs = null;

	header('HTTP/1.0 400 Bad Request', true, 400);
	}
	?>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>Dogs > cats</title>
	</head>
	<body>
	<?php if ($dogs !== null): ?>
	<ul>
	<?php foreach ($dogs as $index => $dog): ?>
	<li>Dog <?php echo $index + 1 ?>: <?php echo htmlentities($dog) ?></li>
	<?php endforeach ?>
	</ul>
	<?php else: ?>
	<strong>Who let the dogs out?</strong>
	<?php endif ?>
	</body>
	</html>