当我从下拉菜单中选择选项Ram时,我面临的问题是隐藏的下拉菜单应该可见。 基本上我正在选择ram处理器下拉菜单时应该将数据添加到数据库中,否则应该将其隐藏;反之,当我选择处理器时,应该将隐藏的主板下拉菜单添加至数据库,否则应该将其隐藏,我尝试过选择ram或处理器
<!-- Category -->
<label for="exampleInputCategory">Category</label>
<div class="form-group">
<select class="form-control" required name="category" onchange="showDiv(this)">
<option value="">Select Category</option>
<?php
$query = "SELECT * FROM category";
$run = mysqli_query($conn, $query);
while ($row = mysqli_fetch_array($run)) {
$CategoryName = $row["name"];
?>
<option value="<?php echo $CategoryName ?>"><?php echo $CategoryName ?></option>
<?php }?>
</select>
</div>
<!-- processor for ram -->
<!-- <div style="display:none"> -->
<div class="form-group" id="pfr" hidden>
<label for="exampleInputCategory">Select Processor for Ram</label>
<select class="form-control" name="porid">
<option value="">Select Processor</option>
<?php
$queryy = "SELECT * FROM products WHERE category='Processor' AND status='Active'";
$runn = mysqli_query($conn, $queryy);
while ($roww = mysqli_fetch_array($runn)) {
$ProcessorTitle = $roww["product_title"];
$ProcessorID = $roww["id"];
// var_dump($Processorid);
?>
<option value="<?php echo $ProcessorID ?>"><?php echo $ProcessorTitle ?></option>
<?php }?>
</select>
</div>
<!-- End Processor for ram -->
<!-- Motherboard for Processor -->
<!-- <div style="display:none"> -->
<div class="form-group" id="mfp" hidden>
<label for="exampleInputCategory">Select Motherboard for Processor</label>
<select class="form-control" name="mopid">
<option value="">Select Motherboard</option>
<?php
$queryyy = "SELECT * FROM products WHERE category='Motherboard' status='Active'";
$runnn = mysqli_query($conn, $queryyy);
while ($rowww = mysqli_fetch_array($runnn)) {
$MotherboardTitle = $rowww["product_title"];
$MotherboardID = $rowww["id"];
// var_dump($Processorid);
?>
<option value="<?php echo $MotherboardID ?>"><?php echo $MotherboardTitle ?></option>
<?php }?>
</select>
</div>
<!-- End Motherboard for Processor -->
<script type="text/javascript">
function showDiv(select){
if(select.value=="Ram"){
document.getElementById('pfr').style.display = "block";
}
elseif(select.value=="Processor") {
document.getElementById('mfp').style.display = "block";
}
else{
document.getElementById('pfr').style.display = "none";
document.getElementById('mfp').style.display = "none";
}
}
</script>
答案 0 :(得分:0)
您有错字。
更改
elseif(select.value=="Processor")
至
else if(select.value=="Processor")