image url

$title = Title::newFromText($v, NS_IMAGE);
$image = Image::newFromTitle($title);
if ($image && $image->exists()) {
	$url      = $image->getURL();                      # Gets the URL for the image at its normal size
	$url_50px = $image->getThumbnail(50,50)->getUrl(); # Gets the URL for the image at a specified size
}