【发布时间】：2023-03-18 02:47:01
【问题描述】：
我在我的代码中遇到了这个问题，我想在 _cart-templet.php 文件中计算小计部分的价格，但它给了我错误我在下面包含了这个错误的所有必要代码：
致命错误：未捕获的错误：调用 C:\xampp\htdocs\MobileShopee\Mobile Shopee\Templet_cart-templet.php:78 中的数组上的成员函数 getSum() 堆栈跟踪：#0 C:\xampp\htdocs \MobileShopee\Mobile Shopee\cart.php(10): include() #1 {main} 在 C:\xampp\htdocs\MobileShopee\Mobile Shopee\Templet_cart-templet.php 第 78 行抛出
主cart.php 文件：
<?php
ob_start();
//include header.php
include ('header.php');
?>
<?php
//include products.php
include ('Templet/_cart-templet.php');
//include top-sale.php
include ('Templet/_new-phones.php');
?>
<?php
//include footer.php
include ('footer.php');
?>
这是我的 _cart-templet.php 文件：
<!----Shopping section---->
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
if (isset($_POST['delete-cart-submit'])){
$deletedRecord = $cart->deleteCart($_POST['item_id']);
}
// save for later
if (isset($_POST['wishlist-submit'])){
$cart->saveForLater($_POST['item_id']);
}
}
?>
<section id="cart" class="py-3 mb-5">
<div class="container-fluid w-75">
<h5 class="font-baloo font-size-20">Shopping Cart</h5>
<!-- shopping cart items -->
<div class="row">
<div class="col-sm-9">
<?php
foreach ($product->getData('cart') as $item) :
$cart = $product->getProduct($item['item_id']);
$subTotal[] = array_map(function ($item){
?>
<!-- cart item -->
<div class="row border-top py-3 mt-3">
<div class="col-sm-2">
<img src="<?php echo $item['item_image'] ?? "./assests/img/products/1.png" ;?>" style="height: 120px;" alt="cart1" class="img-fluid">
</div>
<div class="col-sm-8">
<h5 class="font-baloo font-size-20"><?php echo $item['item_name'] ?? "Unknown"; ?></h5>
<small>by <?php echo $item['item_brand'] ?? "Brand"; ?></small>
<!-- product rating -->
<div class="d-flex">
<div class="rating text-warning font-size-12">
<span><i class="fas fa-star"></i></span>
<span><i class="fas fa-star"></i></span>
<span><i class="fas fa-star"></i></span>
<span><i class="fas fa-star"></i></span>
<span><i class="far fa-star"></i></span>
</div>
<a href="#" class="px-2 font-rale font-size-14">20,534 ratings</a>
</div>
<!-- End product rating -->
<!-- product qty -->
<div class="qty d-flex pt-2">
<div class="d-flex font-rale w-25">
<button class="qty-up border bg-light" data-id="<?php echo $item['item_id'] ?? 0?>"><i class="fas fa-angle-up"></i></button>
<input type="text" data-id="<?php echo $item['item_id'] ?? 0?>" class="qty_input border px-2 w-100 bg-light" disabled value="1" placeholder="1">
<button data-id="<?php echo $item['item_id'] ?? 0?>" class="qty-down border bg-light"><i class="fas fa-angle-down"></i></button>
</div>
<form method="post">
<input type="hidden" value="<?php echo $item['item_id'] ?? 0; ?>" name="item_id">
<button type="submit" name="delete-cart-submit" class="btn font-baloo text-danger px-3 border-right">Delete</button>
</form>
<button type="submit" class="btn font-baloo text-danger">Save for Later</button>
</div>
<!-- End product qty -->
</div>
<div class="col-sm-2 text-right">
<div class="font-size-20 text-danger font-baloo">
$<span class="product_price"><?php echo $item['item_price'] ?? 0; ?></span>
</div>
</div>
</div>
<!-- End cart item -->
<?php
return $item['item_price'];
}, $cart); // closing array_map function
endforeach;
?>
</div>
<!-- subtotal section-->
<div class="col-sm-3">
<div class="sub-total border text-center mt-2">
<h6 class="font-size-12 font-rale text-success py-3"><i class="fas fa-check"></i> Your order is eligible for FREE Delivery.</h6>
<div class="border-top py-4">
<h5 class="font-baloo font-size-20">Subtotal (<?php echo isset($subTotal) ? count($subTotal) : 0; ?> items): <span class="text-danger">$<span class="text-danger" id="deal-price"><?php echo isset($subTotal) ? $cart->getSum($subTotal) : 0; ?></span> </span> </h5>
<button type="submit" class="btn btn-warning mt-3">Proceed to Buy</button>
</div>
</div>
</div>
<!-- !subtotal section-->
</div>
<!-- End shopping cart items -->
</div>
</section>
<!----End Shopping section---->
这是我的 Cart.php 文件：
public function getSum($arr){
if(isset($arr)){
$sum = 0;
foreach ($arr as $item){
$sum += floatval($item[0]);
}
return sprintf('%.2f' , $sum);
}
}
这是我的functions.php文件：
<?php
//require MYSQL Connection
require ("database/DBController.php");
//require product class
require ("database/Product.php");
//require product class
require ("database/Blog.php");
//require cart class
require ("database/Cart.php");
//DB Controller
$db = new DBController();
//product object
$product = new Product($db);
$product_shuffle = $product->getData();
//blog object
$blog = new Blog($db);
//cart object
$cart = new Cart($db);
【问题讨论】：
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