// 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";}希望本文所述对大家的php程序设计有所帮助。