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

Wesley Vuong
Wesley Vuong
6,611 Points
Posted by Wesley Vuong
Wesley Vuong
6,611 Points

Cannot fetch array key for Task 1

I cannot fetch the array key for this task. I also cant find it anywhere in the previous video's.

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 $isbn = key($books); echo $book; ?></li>
        <?php } ?>
    </ul>
</body>
</html>

1 Answer

Matthew Bilz
Matthew Bilz
15,829 Points
Matthew Bilz
Matthew Bilz
15,829 Points

I'd start with this in your foreach loop, I forget what they're asking you to echo out, but this will turn the $isbn variable into the ISBN value and the $book variable into the book title (I probably wouldn't open and close the PHP tags twice just for aesthetics in this case with only a single line of HTML, but to each their own!) :

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