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

Posted by Abdullah Howard
Abdullah Howard
11,955 Points

PHP Basic looping over an object

Hey guys. This code challenge has me stumped. It is telling me to assign the keys of the object to a temporary variable named $isbn and I have done that. When I log it out to the page it loads fine. But for some reason the code editor is telling me that it is wrong. Can anyone help me out?

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

1 Answer

Jordan Howlett
Jordan Howlett
4,377 Points

Hi! Take a look at what the question is asking you here. You're using $key as a working variable, while what you're doing is working, it is not what the question is specifically asking for. Substitute your $key for the $isbn variable in your foreach loop, you can also delete the extra $key variable declaration you have in there too.

<?php
  $books = array(
    "978-0743261690" => "Gilgamesh",
    "978-0060931957" => "The Odyssey",
    "978-0192840509" => "Aesop's Fables",
    "978-0520227040" => "Mahabharta",
    "978-0393320978" => "Beowulf",
  );
?>
<html>
<head>
    <title>Five Great Books</title>
</head>
<body>
    <h1>Five Great Books</h1>
    <ul>
        <?php 
      //Display the key (isbn) as well as the value (title)
        foreach($books as $isbn => $book) {
            echo"<li>" . $isbn . $book . "</li>";
         } 
        ?>
    </ul>
</body>
</html>
Abdullah Howard
Abdullah Howard
11,955 Points

Ty I'll pay more attention next time.