php image display from database

gistfile1.php

...

if (!$result) {
    print 'Error: '. mysql_error();
    exit;
}
else
{
    $row = mysql_fetch_row($result);

    ob_start();

    header('Content-type: image/png');
    header('Content-length: '. strlen($row['Image']) );
    print($row['Image']);

    ob_end_flush();
}