Tengo esto, pero me da error:
Código PHP:
<?php
$serviceName = Zend_Gdata_Photos::AUTH_SERVICE_NAME;
$user = "mi user";
$pass = "mi pass";
$client = Zend_Gdata_ClientLogin::getHttpClient($user, $pass, $serviceName);
// update the second argument to be CompanyName-ProductName-Version
$gp = new Zend_Gdata_Photos($client, "Google-DevelopersGuide-1.0");
// In version 1.5+, you can enable a debug logging mode to see the
// underlying HTTP requests being made, as long as you're not using
// a proxy server
// $gp->enableRequestDebugLogging('/tmp/gp_requests.log');
$username = "hackcrack";
$filename = "http://imghackcrack.files.wordpress.com/2011/06/descarga.png";
$photoName = "My Test Photo";
$photoCaption = "The first photo I uploaded to Picasa Web Albums via PHP.";
$photoTags = "beach, sunshine";
// We use the albumId of 'default' to indicate that we'd like to upload
// this photo into the 'drop box'. This drop box album is automatically
// created if it does not already exist.
$albumId = "default";
$fd = $gp->newMediaFileSource($filename);
$fd->setContentType("image/jpeg");
// Create a PhotoEntry
$photoEntry = $gp->newPhotoEntry();
$photoEntry->setMediaSource($fd);
$photoEntry->setTitle($gp->newTitle($photoName));
$photoEntry->setSummary($gp->newSummary($photoCaption));
// add some tags
$keywords = new Zend_Gdata_Media_Extension_MediaKeywords();
$keywords->setText($photoTags);
$photoEntry->mediaGroup = new Zend_Gdata_Media_Extension_MediaGroup();
$photoEntry->mediaGroup->keywords = $keywords;
// We use the AlbumQuery class to generate the URL for the album
$albumQuery = $gp->newAlbumQuery();
$albumQuery->setUser($username);
$albumQuery->setAlbumId($albumId);
// We insert the photo, and the server returns the entry representing
// that photo after it is uploaded
$insertedEntry = $gp->insertPhotoEntry($photoEntry, $albumQuery->getQueryUrl());
?> 
