// file to read
$file = 'test.jpg';
$image = exif_thumbnail($file, $width, $height, $type);
// width, height and type get filled with data
// after calling "exif_thumbnail"
if ($image) {
 // send header and image data to the browser:
 header('Content-type: ' .image_type_to_mime_type($type));
 print $image;
}
else {
 // there is no thumbnail available, handle the error:
 print 'No thumbnail available';
}