Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Jason Brown
Jason Brown
9,626 Points
Posted by Jason Brown
Jason Brown
9,626 Points

Problem 2 of code challenge

I've tried this a number of times in different iterations. I don't know what I'm doing wrong here? The problem in the lesson is a little more complicated and I'm missing something in the pairing down of the code challenge, I guess?

Someone please help?

Thanks in advance.

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 $isbn => $book) { 

          ?>

            <li><?php echo $book " (" . $book[$isbn] .")"; ?></li>
        <?php } ?>
    </ul>
</body>
</html>

3 Answers

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

Check to see if adding the concatenation . in your <li> tag PHP code solves the issue.

<li><?php echo $book . " (" . $book[$isbn] . ")"; ?>
Jason Brown
Jason Brown
9,626 Points
Jason Brown
Jason Brown
9,626 Points

Thanks! I saw that right after I posted the question, but no dice. Still trying to put the pieces together ...

Matthew Bilz
Matthew Bilz
15,829 Points

This will get you a correct answer, after I've reviewed the challenge - let me know if something doesn't make sense and I'd be happy to break it down:

 <h1>Five Great Books</h1>
    <ul>
        <?php foreach($books as $isbn => $book) { ?>
            <li><?php echo $book . " (" . $isbn . ")" ; ?></li>
        <?php } ?>
    </ul>
Jason Brown
Jason Brown
9,626 Points
Jason Brown
Jason Brown
9,626 Points

Thanks so much Matthew! Got it!

Matthew Bilz
Matthew Bilz
15,829 Points

Always happy to help!