photo album in php

Jf88 · June 7, 2009

Hi,

I am a complete beginner in PHP. Now I want to make a photo album for my website. I currently have made an index.php with 3 includes to other php pages:

toonalbums.php (translation: showalbums.php)

This page I use to make an list of all the photo albums that are available in a directory of my choice. The code in this page also needs to generate hyperlinks so I can watch all the photo's inside the specific albums.

toonalbuminhoud.php (translation: showalbumcontent.php)

This page I use so all the photo's will be visible in thumbnails. The thumbnails need to be hyperlinks so a bigger version of the photo's can be seen.

toonfoto.php (translation: showfoto.php)

This page I use to show the foto in his original size.

The code I currently use is:

toonalbums.php

<?php
$mapnaam = 'albums/';

echo '<ul>';
if ($handle = opendir($mapnaam))
{
while (false !== ($albumnaam = readdir($handle)))
{		
	echo '<li><a href="?album=' . $_GET['album'] . '"></a></li>';
}
closedir($handle);
}
echo '</ul>';

?>

toonalbuminhoud.php:

<?php
if(isset($_GET['album']))
{
	$albumnaam = $_GET['album'];
	$mapnaam = 'albums/' . $albumnaam;

	echo '<ul>' ;	
	if ($handle = opendir($albumnaam))
	{
		while (false !== ($fotonaam = readdir($handle)))
		{
			echo '<li><a href="?album=' . $_GET['album'] . '$foto=' . $_GET['foto']  . '">
				<img class="thumbnail" src="' . $mapnaam . '/' . $fotonaam . '" alt="' . $fotonaam . '"/>
			</a></li>';
		}
		closedir($handle);
	}
	echo '</ul>';
}
?>

toonfoto.php:

<?php
if(isset($_GET['foto']))
{
	$fotonaam = $_GET['foto'];
	$mapnaam = 'albums/' . $_GET['album'];

	echo '<img src="' . $mapnaam . '/' . $fotonaam . '" alt="' . $fotonaam . '"/>';
}
?>

the following page is the index with the 3 includes:

<body>
<div id="albums">
    	<?php include 'toonalbums.php'; ?>
    </div>
    <div id="albuminhoud">
    	<?php include 'toonalbuminhoud.php'; ?>
    </div>
    <div id="foto">
    	<?php include 'toonfoto.php'; ?>
    </div>    
</body>

When I execute the index I get the following error:

"Notice: Undefined index: album in C:\wamp\www\webprogramming\php2\toonalbums.php on line 9"

I don't know exactly what's wrong but I think it has something to do with the variables and the '$_GET['album']' code I use in the echo on the 'toonalbum.php' page. Also the map album exists and there are a couple of maps with photo's inside.

I hope someone can help me and explain how I can fix the code, because I think I am pretty close to getting it to work.

fanfavorite · June 7, 2009

Does album already exist in the url? I would do something like:

if (isset($_GET['album'])) {

$album = $_GET['album'];

} else {

$album = 0; //Whatever default value you want if an album isn't selected

}

Then change to:

echo '<li><a href="?album=' . $album . '"></a></li>';

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photo album in php

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