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

Josh Bradford
Josh Bradford
9,935 Points
Posted by Josh Bradford
Josh Bradford
9,935 Points

Help with getting and displaying the keys to the $books array

I am having trouble with this particular exercise. How do you get the keys of an array to display alongside their values in this code challenge for the $books array()? I am just not remembering the correct syntax of it I'm sure. Thanks.

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

1 Answer

James Reinhold
James Reinhold
12,361 Points

<?php foreach($books as $isbn => $book) { ?> <li><?php echo $isbn ." ". $book; ?></li> <?php } ?>

Josh Bradford
Josh Bradford
9,935 Points
Josh Bradford
Josh Bradford
9,935 Points

Thank you, that seemed to work perfectly. I could not for the life of me figure that out.