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

Johannes Chitura
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Johannes Chitura
PHP Development Techdegree Student 8,907 Points
Posted by Johannes Chitura
.a{fill-rule:evenodd;}techdegree
Johannes Chitura
PHP Development Techdegree Student 8,907 Points

Can't seem to get the $isbn variable working.

I updated my foreach loop to include the keys by changing it to $books as $keys => $book. Then I created a variable named $isbn and appended the $keys as the loop is running through. When I do a var_dump of $isbn, I'm able to see my array of keys but my answer seems to be wrong somewhere. Not sure where I am going wrong.

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 $keys => $book) { 

              $isbn[] = $keys;

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

1 Answer