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PHP Build a Basic PHP Website (2018) Listing and Sorting Inventory Items Array Keys

Can't seem to figure out this test question.

So it wants me to store the array key in a variable called $isbn everytime it cycles through the loop. I thought $id represents the array key but I guess not. :(

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 $id => $book) { ?>
            <li><?php echo $book;?></li>
        <?php $isbn = $id; } ?>
    </ul>
</body>
</html>

1 Answer

Change $id => $book to $isbn => $book and things should start to fall into place.

Thanks brutha. Ended up figuring this out a day later but didn't know how to find/delete the post :) Thanks though!