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Tony McCabe
8,445 PointsArray Key
The array below contains a list of books. Each element in the array has the book’s title as its value and the ISBN as its key. Right now, the page is only displaying the book titles in the browser. In this code challenge, we will modify the page to also display each book’s ISBN. First, we need to make the keys from the books array accessible inside the foreach loop. Modify the foreach command so that, as it loops through the books, it loads the ISBN for each book into a working variable called $isbn. How do you want this. I maybe wrong, but I may have to go back. I'm a little confused. Cabn you give me a hint?
7 Answers
Randy Hoyt
Treehouse Guest TeacherThe line that says this ...
foreach($books as $book) {
... needs to be modified. Right now, it loads the book title into the $book variable but it doesn't do anything with the ISBN. It needs to be modified so that it continues to load the book title into the $book variable but all loads the ISBN into the $isbn variable.
Tony McCabe
8,445 PointsIt doesn't look like you are loading the ISBN into a working variable. (Here's a clue: you should be using a double arrow.)
Where does the double arrow go? foreach ($books as $book) { }
Tony McCabe
8,445 Pointsas it loops through the books, it loads the ISBN for each book into a working variable called $isbn. "What?"
Randy Hoyt
Treehouse Guest TeacherChange it to this:
foreach($books as $isbn => $book) {
Tony McCabe
8,445 PointsHere is another problem by me for you? foreach ($books as $isbn => $books ) {
}
Tony McCabe
8,445 PointsSorry it say's to try again?
I see all the book titles and the ISBNs in the browser, but the formatting is not quite right. Each list item should look like this: Book Title (978-0123456789). Here is my code: Five Great Books Five Great Books <?php foreach($books as $isbn => $book) { ?> <?php echo $book; ?> (<?php echo $isbn; ?>) <?php } ?>
Randy Hoyt
Treehouse Guest TeacherIt looks like you might have removed some of the HTML that was there before. The goal of this task is to add some information from the array to the page, while leaving the existing HTML that was there in tact. When the page first loaded, it displayed HTML like this:
<html>
<head>
<title>Five Great Books</title>
</head>
<body>
<h1>Five Great Books</h1>
<ul>
<li>Gilgamesh</li>
<li>The Odyssey</li>
<li>Aesop's Fables</li>
<li>Mahabharta</li>
<li>Beowulf</li>
</ul>
</body>
</html>
It seems like you might have removed the unordered list and list item tags.
Does that help?