我想用来自数据库 vales 的数据填充文本框。但同时它应该根据选择的静态下拉值显示值。我不知道如何实现这一目标。这是我的代码
<form name="form1" action="submit.php" method="post">
<tr bgcolor="#00BFFF">
<td><strong>Month</strong></td>
</tr>
<tr>
<td>
<select name="month"><option value="january">January</option>
<option value="february">February</option>
<option value="march">March</option>
<option value="april">April</option>
<option value="may">May</option>
<option value="june">June</option>
<option value="july">July</option>
<option value="august">August</option>
<option value="september">September</option>
<option value="october">October</option>
<option value="november">November</option>
<option value="december">December</option>
</select>
</td>
<td><input type="text" name="day1" id="day1" style="width:87%;" /></td>
<td><input type="text" name="day2" id="day2" style="width:87%;" /></td>
<td><input type="text" name="day3" id="day3" style="width:87%;" /></td>
<td><input type="text" name="day4" id="day4" style="width:87%;" /></td>
<td><input type="text" name="day5" id="day5" style="width:87%;" /></td>
<td><input type="text" name="day6" id="day6" style="width:87%;" /></td>
<td><input type="text" name="day7" id="day7" style="width:87%;" /></td>
<td><input type="text" name="day8" id="day8" style="width:87%;" /></td>
<td><input type="text" name="day9" id="day9" style="width:87%;" /></td>
<td><input type="text" name="day10" id="day10" style="width:87%;" /></td>
<td><input type="text" name="day11" id="day11" style="width:87%;" /></td>
<td><input type="text" name="day12" id="day12" style="width:87%;" /></td>
<td><input type="text" name="day13" id="day13" style="width:87%;" /></td>
<td><input type="text" name="day14" id="day14" style="width:87%;" /></td>
<td><input type="text" name="day15" id="day15" style="width:87%;" /></td>
<td><input type="text" name="day16" id="jan16" style="width:87%;" /></td>
<td><input type="text" name="day17" id="day17" style="width:87%;" /></td>
<td><input type="text" name="day18" id="day18" style="width:87%;" /></td>
<td><input type="text" name="day19" id="day19" style="width:87%;" /></td>
<td><input type="text" name="day20" id="day20" style="width:87%;" /></td>
<td><input type="text" name="day21" id="day21" style="width:87%;" /></td>
<td><input type="text" name="day22" id="day22" style="width:87%;" /></td>
<td><input type="text" name="day23" id="day23" style="width:87%;" /></td>
<td><input type="text" name="day24" id="day24" style="width:87%;" /></td>
<td><input type="text" name="day25" id="day25" style="width:87%;" /></td>
<td><input type="text" name="day26" id="day26" style="width:87%;" /></td>
<td><input type="text" name="day27" id="day27" style="width:87%;" /></td>
<td><input type="text" name="day28" id="day28" style="width:87%;" /></td>
<td><input type="text" name="day29" id="day29" style="width:87%;" /></td>
<td><input type="text" name="day30" id="day30" style="width:87%;" /></td>
<td><input type="text" name="day31" id="day31" style="width:87%;" /></td>
<input type="hidden" name="pid" value="<?php echo $product_id ?>"/>
</tr>
<tr><td colspan="32" align="center"><input type="submit" value="SUBMIT DATA" name="submit" style="font-size:18px; font-weight:bold;" /></td></tr>
</form>
</table>
在此页面中,它应该根据所选月份填充从数据库中获取的文本框值。