Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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

Ashlea Bowlin
Ashlea Bowlin
2,591 Points

Load key into a temp variable

Can you point me to the instructional video which goes over this type of challenge? I am completely lost here and have tried to backtrack through the previous videos in this lesson but I can't find where she goes over this.

The keys in this array are the ISBN of the books, it's asking me to load these keys into a temporary variable($isbn) within the foreach statement in order to display them along with the book titles, but I don't even know how to begin here and would like to go back over the lesson which went into detail.

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>

Hey Ashlea Bowlin , In this code challenge you have to print book with isbn in browser windows so for the same result expected by the challenge you have to loop through $books along with keys and values.

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