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我正在購物車。我能夠根據數量計算產品價格。如何計算總金額取決於小計和運費在PHP？
現在我計算的總金額取決於產品價格的小計和運費。
當我增加產品數量時，它會計算產品價格，但不計算小計和總金額。
或者還有其他安全的方法來處理這個問題嗎？
你能幫我解決嗎？
$('a.ddd').click(function() {
var $productContainer = $(this).closest('div.sp-quantity');
var $pro_list = $(this).closest('tr.pro-list');
var productPrice = parseFloat($pro_list.find('span.price_cal').text());
var $quantityInput = $productContainer.find('input.quntity-input');
var newQuantity = parseFloat($quantityInput.val()) + parseFloat($(this).data('multi'));
if (newQuantity>= 1) {
// Refresh quantity input.
$quantityInput.val(newQuantity);
// Refresh total div.
var lineTotal = productPrice*newQuantity;
$pro_list.find('td.total_amount').data('price','£'+lineTotal).html('£'+lineTotal);
}
});.sp-quantity {
width:124px;
height:42px;
float: left;
}
.sp-minus {
width:40px;
height:40px;
border:1px solid #e1e1e1;
float:left;
text-align:center;
}
.sp-input {
width:40px;
height:40px;
border:1px solid #e1e1e1;
border-left:0px solid black;
float:left;
}
.sp-plus {
width:40px;
height:40px;
border:1px solid #e1e1e1;
border-left:0px solid #e1e1e1;
float:left;
text-align:center;
}
.sp-input input {
width:30px;
height:34px;
text-align:center;
border: none;
}
.sp-input input:focus {
border:1px solid #e1e1e1;
border: none;
}
.sp-minus a, .sp-plus a {
display: block;
width: 100%;
height: 100%;
padding-top: 5px;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
\t <table class="table cart-table">
<thead class="table-headings">
<tr>
<th class="pname">Product</th>
<th class="punit">Unit Price</th>
<th class="pquant">Quantity</th>
<th class="ptotal">Total price</th>
</tr>
</thead>
<?php if(!empty($_SESSION['products'])):
foreach($_SESSION['products'] as $key=>$product):?>
<tbody>
<tr class="pro-list">
<td>
<div class="ordered-product cf">
<div class="pro-img">
<img src="admin/images/products/<?php echo $product['p_images'];?>" alt=" prodcut image">
</div>
<div class="pro-detail-name">
<h3><?php echo $product['p_name'];?></h3>
</div>
<?php
$p_delete=$product['p_id'];
//$decrypted_delete_id = decryptIt($p_delete);
$encrypted_user_id = encryptIt($p_delete);
$delete_product_id=urlencode($encrypted_user_id);
?>
<a href="my-cart?action=empty&deletekey=<?php echo $delete_product_id;?>" class="cross-cta"><i class="fa fa-times" aria-hidden="true"></i></a>
</div>
</td>
<td>£<span class="price_cal"><?php echo $product['p_currentprice'];?></span></td>
<td>
<div class="sp-quantity">
<div class="sp-minus fff"><a class="ddd" href="javascript:void(0)" data-multi="-1">-</a></div>
<div class="sp-input">
<input type="text" class="quntity-input" value="<?php echo $product['qty'];?>" />
</div>
<div class="sp-plus fff"><a class="ddd" href="javascript:void(0)" data-multi="1">+</a></div>
</div>
</td>
<?php $single_total = $product['qty']*$product['p_currentprice'];?>
<td class='total_amount' data-price='£<?php echo $single_total;?>'>£<?php echo $single_total;?></td>
</tr>
<?php $total = $total+$single_total;
$_SESSION['total_cost']=$total;
endforeach;?>
<tr class="pro-list">
<td></td>
<td></td>
<td><span>Subtotal</span></td>
<td class='total_amount' data-price='£<?php echo $single_total;?>'>£<?php echo $single_total;?></td>
<!-- <td><span>Shiping Cost</span></td>
<td><i class="fa fa-fighter-jet" aria-hidden="true"></i>£<?php echo $total;?></td> -->
</tr>
<tr class="pro-list">
<td></td>
<td></td>
<td><span>Total Cost</span></td>
<td>£<?php echo $total;?></td>
</tr>
</tbody>
<?php endif;?>
</table>
你沒寫，計算小計和總的任何代碼。小計和總計的公式是什麼？ –
@PhaniKumarM，我用PHP更新了我的代碼。請檢查一下。 –
你用錯誤的PHP與jQuery，這是一個JavaScript庫。可能是由於使用'$'造成的。 – Mouser