Как показать значение один раз в цикле

Question

Я работаю над корзиной на веб-сайте, но ее общая стоимость зависит от продуктов.Если добавить три продукта, то общая цена будет отображаться три раза, а если я добавлю два продукта в корзину, то будет отображаться два раза.

cart.blade.php

<table>
    <tr class="table-row">
        <?php $total_amount = 0; ?>
        @foreach($userCart as $cart)
            <td class="column-1">
                <div class="cart-img-product b-rad-4 o-f-hidden">
                    <img src="{{ asset('images/backend_images/products/small/'.$cart->image) }}" alt="IMG-PRODUCT">
                </div>
            </td>
            <td class="column-2">{{ $cart->product_name }}</td>
            <td class="column-3">PKR: {{ $cart->price }}</td>
            <td class="column-4">
                <div class="flex-w bo5 of-hidden w-size17">
                    <a class="cart_quantity_up color1 flex-c-m size7 bg8 eff2"
                       href="{{ url('/cart/update-quantity/'.$cart->id.'/1') }}">+</a>
                    <input class="size8 m-text18 t-center num-product" type="number" name="quantity"
                           value="{{ $cart->quantity }}">
                    @if($cart->quantity>1)
                        <a class="cart_quantity_down color1 flex-c-m size7 bg8 eff2"
                           href="{{ url('/cart/update-quantity/'.$cart->id.'/-1') }}">-</a>
                    @endif
                </div>
            </td>
            <td class="column-5">PKR: {{ $cart->price }}</td>
            <td class="column-6"><a href="{{ url('/cart/delete-product/'.$cart->id)}}">X</a></td>
    </tr>
    @endforeach
</table>

<!-- Total -->
<div class="flex-w flex-sb-m p-t-26 p-b-30">
    @php
        $total = 0; 
        foreach($userCart as $cart) {
            $total += ($cart->price * $cart->quantity); 
        }
    @endphp
    <span class="m-text22 w-size19 w-full-sm">Total:</span>

    <span class="m-text21 w-size20 w-full-sm">{{ $total }}</span>
</div>

ПродуктыКонтроллер

public function addtocart(Request $request)
{
    $data = $request->all();
    $session_id = Session::get('session_id');
    if (empty($session_id)) {
        $session_id = str_random(40);
        Session::put('session_id', $session_id);
    }
    DB::table('cart')->insert(['product_id' => $data['product_id'], 'product_name' => $data['product_name'], 'product_code' => $data['product_code'], 'product_color' => $data['product_color'], 'price' => $data['price'], 'size' => $data['size'], 'quantity' => $data['quantity'], 'user_email' => $data['user_email'], 'session_id' => $session_id]);

    return redirect('cart')->with('flash_message_success', 'Product has been added in Cart!');
}

public function cart()
{
    $session_id = Session::get('session_id');
    $userCart = DB::table('cart')->where(['session_id' => $session_id])->get();
    foreach ($userCart as $key => $product) {
        $productDetails = Product::where('id', $product->product_id)->first();
        $userCart[$key]->image = $productDetails->image;
    }

    return view('products.cart')->with(compact('userCart'));
}

Answer 1

Вы можете вычислить сумму в контроллере, так как вы уже просматриваете там элементы корзины.

public function cart(){
    $session_id = Session::get('session_id');
    $userCart = DB::table('cart')->where(['session_id'=>$session_id])->get();
    $total = 0;
    foreach ($userCart as $key => $product) {
        $productDetails = Product::where('id',$product->product_id)->first();
        $userCart[$key]->image = $productDetails->image;
        $total += ($product->price * $product->quantity); 
    }
    return view('products.cart')->with(compact('userCart', 'total'));
}

И используете $total в своем представлении.