html
Good
<select name = "month"> <option>Month</option> <?php for($month = 1; $month <= 12; $month++) echo"<option value = '".$month."'>".$month."</option>"; ?> </select>
<select name = "day"> <option>Day</option> <?php for($day = 1; $day <= 31; $day++){ echo "<option value = '".$day."'>".$day."</option>"; } ?> </select>