Ciclo for

[Alhazred]

$i = 1;
while ($row = mysql_fetch_assoc($res)) {
    echo "<tr><td width='50px'>".$i."</td>
          <td class='td' width='160px'>".$row['name']."</a></td>
          <td class='td' width='160px'>".$row['number']."</td>";
    $i++;
}