0
舉例來說,如果我有一個數據庫retreived以下數據:從查詢結果中發揮框架創建OPTGROUP
--------------------------
| id | name | department|
--------------------------
| 1 | john | HR |
--------------------------
| 2 | peter| accounting|
--------------------------
| 3 | adam | secretary |
--------------------------
如何創建一個OPTGROUP標籤在OPTGROUP顯示這個結果有以下:
<select >
<optgroup label='HR'>
<option value='1'>john</option>
</optgroup>
<optgroup label='accounting'>
<option value='2'>peter</option>
</optgroup>
<optgroup label='secretary'>
<option value='3'>adam</option>
</optgroup>
</select>