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PHP Build a Simple PHP Application Integrating with PayPal Array Keys

Posted by Raul Chiru
Raul Chiru
Courses Plus Student 2,776 Points

what's wrong?

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.

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)

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

1 Answer

Jeff Lemay
Jeff Lemay
14,268 Points
Jeff Lemay
Jeff Lemay
14,268 Points

Your echo statement isn't concatenated properly, I'm not sure if that's the only issue though. The string portions of an echo statement need to be wrapped in quotes, in this case that's our two parentheses. We also add the space we need between the book title and the isbn inside the string with the opening parentheses. 

<li><?php echo $book . " (" . $isbn . ")"; ?></li>
Jason S
Jason S
16,247 Points
Jason S
Jason S
16,247 Points

does a book echo book if a book could echo book?

Jeff Lemay
Jeff Lemay
14,268 Points
Jeff Lemay
Jeff Lemay
14,268 Points

Complete foreach loop:

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