Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

PHP Build a Basic PHP Website (2018) Building a Media Library in PHP Adding Active States to the Navigation

underline doesn't work

I did everything right I don't know where is my mistake can anyone help, please?

<?php $pageTitle = "full catalog"; $section = null;

if (isset($GET["cat"])) { if ($_GET["cat"] == "books"){ $pageTitle="books"; $section = "books"; } else if ($_GET["cat"] == "movies"){ $pageTitle = "movies"; $section = "moives"; } else if ($_GET["cat"] == "music"){ $pageTitle = "music"; $section = "music"; } }

include("inc/header.php"); ?>

<div class="section page"> <h1><?php echo $pageTitle; ?></h1> </div>

<?php include("inc/footer.php"); ?>

<ul class="nav"> <li class="books <?php if (isset($section) && $section == "books") { echo "on"; } ?>"><a href="catalog.php?cat=books">Books</a></li> <li class="movies <?php if ($section == "moives") { echo "on"; } ?>"><a href="catalog.php?cat=movies">Movies</a></li> <li class="music <?php if ($section == "music") { echo "on"; } ?>"><a href="catalog.php?cat=music">Music</a></li> <li class="suggest <?php if ($section == "suggest") { echo "on"; } ?>"><a href="suggest.php">Suggest</a></li> </ul>

1 Answer

Niki Molnar
Niki Molnar
25,575 Points

Hi Naif

Most of your $_GET["cat"] don't have the underscore (you have $GET["cat"]) - the only one where it is correct (movies), you misspelt "movies" as "moives" in the $section="moives"; code.

The correct code is:

if (isset($_GET["cat"])) {
    if ($_GET["cat"] == "books") {
        $pageTitle = "Books";
        $section = "books";
    } else if ($_GET["cat"] == "movies") {
        $pageTitle = "Movies";
        $section = "movies";
    } else if ($_GET["cat"] == "music") {
        $pageTitle = "Music";
        $section = "music";
    }
}

Hope that helps!

Niki

Thank you so much appreciate it :)