printing a table using PDO

$DB_SERVER = "mysql.dunglaxx.com";
$DB_USER = "dungla";
$DB_PASS = "password";
$DB_NAME = "dakdata";

try {
    $pdo = new PDO("mysql:host=$DB_SERVER;dbname=$DB_NAME", $DB_USER, $DB_PASS);

    $sql = '
        SELECT word, notes
        FROM md_words
        ORDER BY RAND()
        LIMIT 1 ';

    $q = $pdo->query($sql);
    $q->setFetchMode(PDO::FETCH_ASSOC);
}
catch (PDOException $e)
{
    die("Could not connect to the database $dbname :" . $e->getMessage());
}

   while ($row = $q->fetch())
   {
        // we print the quote ($row[0]) and the author ($row[0])
        $quote = $row['word'];
        $meaning = $row['notes'];
   }