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 Simple PHP Application Integrating with PayPal Array Keys

Amritpan Kaur
Amritpan Kaur
2,118 Points

Having difficulty with Part 2 of Challenge in PHP Development - Integrating with Paypal

''' 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 ; ?> (<?php echo $isbn ; ?>) </li> <?php } ?> </ul> </body> </html>

'''

Challenge task 2 of 2 Next, modify the code inside the foreach loop to display the $isbn in parentheses. After the title, add a space, an opening parenthesis, the ISBN, and a closing parenthesis.

The code above is what I've come up with. I've tested it, and it's giving what the Challenge is asking.

The Challenge seems to disagree. Here's the message that I get when I go to submit: Bummer! I see all the book titles and the ISBNs in the browser, but the formatting is not quite right. Each list item should look like this: Book Title (978-0123456789)

I'm not sure what formatting I'm missing. My code processes as: Book Title (978-0123456789).

Help?

2 Answers

David Kaneshiro Jr.
David Kaneshiro Jr.
29,247 Points

It looks like the challenge wants you to concatenate the parenthesis, space, and ISBN to after $book so that it's just one echo statement.

<li><?php echo $book . " (" . $isbn . ")"; ?></li>

Also you seem to be missing the <li></li> tags.

Amritpan Kaur
Amritpan Kaur
2,118 Points

Thanks! Originally I had used concatenation, but that didn't work. I see what I did wrong. Thanks again.

For some reason, the tags didn't post when I copy pasted the code here. I tried to edit, but the tags still wouldn't show.