Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

PHP Build a Basic PHP Website Listing and Sorting Inventory Items Array Keys

Posted by AJ Ramirez
AJ Ramirez
5,403 Points

I cannot get past this exercise

I have already assigned the key to isbn but it says my foreach statement needs to assign the key to a temporary variable named $isbn.

index.php 
<?php

$books["978-0743261690"] = "Gilgamesh";
$books["978-0060931957"] = "The Odyssey";
$books["978-0192840509"] = "Aesop's Fables";
$books["978-0520227040"] = "Mahabharta";
$books["978-0393320978"] = "Beowulf";

?><html>
<head>
    <title>Five Great Books</title>
</head>
<body>
    <h1>Five Great Books</h1>
    <ul>
        <?php foreach($books as $key => $book) { ?>
            <li><?php echo $book;
                 $isbn = $key;
              ?></li>
        <?php } ?>
    </ul>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Why not have the loop extract the key directly into the $isbn variable, then you wouldn't need $key at all (or the need to reassign it later)?