值我有兩個<select>
,類別和子類別。 我希望當我點擊類別的選項/值,然後加載&從mySQL更新第二個<select>
。子類別值在mySQL中。變化和負荷<select>的MySQL從另一個<select>
(1)類別選擇
<select class="form-control" onchange="check()" id="category" name="category">
<option value="cafe">Café</option>
<option value="bars-clubs">Bars-Clubs</option>
<option value="restaurants">Restaurants</option>
<option value="shopping">Shopping</option>
<option value="services">Services</option>
<option value="sducation">Education</option>
</select>
(2)子類別選擇
<select class="form-control " id="SubCategory" name="subCategory">
<?php include "server.php";
$qyerry = "select * from " + [[FROM CATEGORY VALUE]]
$result = mysql_query($qyerry);
while($row = mysql_fetch_array($result)){
echo "<option value=''>" . $row{'name'} . "</option>";
}
?>
</select>
這是我的JavaScript代碼來獲得平變化值期權的價值
<script>
function check(){
var x = document.getElementById("category").value;
}
</script>
兄弟,你不能通過這種方式。 –
我該怎麼辦? – Rafsonic
我想爲你寫一個答案 –