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 trialSP van der Merwe
6,291 PointsWhat do they mean with the hint: "you should be using a double arrow"? I am struggling with this question.
I am struggling with this question, any help would be appreciated thanks.
<?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 $isbn_code = $_GET["id"];
$isbn = $book["isbn_code"];?>
<?php } ?>
</ul>
</body>
</html>
2 Answers
Rich Bagley
25,869 PointsHi,
Without giving you the exact answer the double arrow they're referring to is =>.
The following line needs to be edited to include this and load the book isbn in to a variable of $isbn:
<?php foreach($books as $book) { ?>
Randy goes over this at around 4:30 here.
Hope that helps to give you an idea how to proceed.
-Rich
Damien Watson
27,419 PointsHey, you need to modify the 'foreach' to get key and value pairs.
<?php
// eg foreach(array_expression as $key => $value) { }
foreach($books as $isbn => $book) { }
?>