Show pictures from Picasa albums in your custom website using Zend Framework
[ More ] Jun 13, 2010 | 2 Comments | Posted in General, HowTo, PHP, Web Development |Zend Framework and Zend Gdata API provide a simple and effective solution to display pictures and galleries from your picasa account in your own custom website. Lets take one of the public galleries in picasa show it in a custom php page in this website.
Zend Framework
Before we start. In order to use Zend Gdata API, you need to have Zend framework (1.6 or higher) installed, If you have the full framework package installed , you won’t need to worry about anything, you can go ahead and start calling the APIs directly, In case if you don’t have the full framework package installed, you will have to download and configure Google Data Client Library. Details of setup and configuration are listed in the following link
http://code.google.com/apis/gdata/articles/php_client_lib.html#gdata-installation
CODE 
The following url refers to a public picasa gallery
http://picasaweb.google.com/shasankar/SampleGallery#
The URL has two important pointers, the picasa user id the one that follows the picasaweb.google.com domain, its usually the picasa user name, in some cases it can also be a long alphanumeric string, this is the user id, the other one is the gallery name, in this case it is ‘SampleGallery’
The following script allows you to load pictured directly into your website
<?php
error_reporting(E_ALL);
require_once 'Zend/Loader.php';
Zend_Loader::loadClass('Zend_Gdata_Photos');
// Album and User
$sUserID = "shasankar";
$sAlbumName = "SampleGallery";
$serviceName = Zend_Gdata_Photos::AUTH_SERVICE_NAME;
$gp = new Zend_Gdata_Photos();
$query = $gp->newAlbumQuery();
$query->setUser($sUserID);
$query->setAlbumName($sAlbumName);
$query->setImgMax("800");
$query->setThumbSize("160");
$albumFeed = $gp->getAlbumFeed($query);
$sPrintThumbs = "";
foreach ($albumFeed as $albumEntry) {
if ($albumEntry->getMediaGroup()->getThumbnail() != null) {
// Load Thumbnail Info
$mediaThumbnailArray = $albumEntry->getMediaGroup()->getThumbnail();
$ThumbnailUrl = $mediaThumbnailArray[0]->getUrl();
$ThumbnailHeight = $mediaThumbnailArray[0]->getHeight();
$ThumbnailWidth = $mediaThumbnailArray[0]->getWidth();
// Load Picture Info
$mediaArray = $albumEntry->getMediaGroup()->getContent();
$ImageUrl = $mediaArray[0]->getUrl();
$sImageTitle = $albumEntry->getMediaGroup()->getDescription()->text;
$url = $albumEntry->getLink('alternate')->href;
$sLinkString = <<<LTEXT
<a href="$ImageUrl" title="$sImageTitle"><img src="$ThumbnailUrl" width="$ThumbnailWidth" height="$ThumbnailHeight" /></a>
LTEXT;
$sPrintThumbs .=$sLinkString ;
}
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title> Loading pictures from Picasa Gallery</title>
</head>
<body >
<div>
<div>
<h3>SampleGallery (Picasa)</h3>
</div>
<div>
<?php echo $sPrintThumbs; ?>
</div>
</div>
<div class="clear"></div>
</body>
</html>
The Api allows lot of customization options, thumbnail size, final image size, number of results per page, etc, these setting have to passed along with the Album query that is sent to picasa.
Picasa album in Custom Webpage
Related Links
If you want to display private picasa galleries in your website, you can make use of zend authentication api, you can read more about it here
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