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

Dont understand what to do

Hello can someone please give me a hint as to how should i solve this problem? if tried to store the keys value into an isbn variable.

$isbn = array_keys($book);

But im not sure what is missing to continue to the next step

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

1 Answer

Jeff Wolfram
Jeff Wolfram
10,490 Points

Try and change your for each to this

<?php foreach($books as $isbn => $book) { ?>
Jeff Wolfram
Jeff Wolfram
10,490 Points

Just that line. Keep all the rest the same.