Exercise : Animal Gallery (by Alex Miller)

Given a directory of animal pictures (images.zip), write a PHP webpage animals.php which displays these pictures.

If no query parameter is set, then the page should simply display all of the images in the images directory. The user can set an animal query parameter to choose whether to display only puppy pictures or only kitty pictures. For example, if the user entered the following URL:

animals.php?animal=puppy

Then the page should only display puppy pictures. You may assume that the animal query parameter is either kitty or puppy.

Exercise Solution

<div>
  <?php
  $animal = "";
  if (isset($_GET["animal"])) {
	  $animal = $_GET["animal"];
  }
  $files = glob("images/{$animal}*.jpeg");
  foreach ($files as $image) {
	 ?>
	 <img src="<?= $image ?>" alt="animal picture" />
	 <?php
  }
  ?>
</div>