Zend_Service_Flickr makes it quick and easy to get an image's
details based on a given image ID. Just use the
getImageDetails() method, as in the following example:
Example 803. Retrieving Flickr Image Details
Once you have a Flickr image ID, it is a simple matter to fetch information about the image:
<?php
$flickr = new Zend_Service_Flickr('MY_API_KEY');
$image = $flickr->getImageDetails($imageId);
echo "Image ID $imageId is $image->width x $image->height pixels.<br />\n";
echo "<a href=\"$image->clickUri\">Click for Image</a>\n";