Hi Team

I need some help with my shopping cart, i am adding item on the basket, but when i click on the basket for those item added its empty. 

            

  
    
    
  


// basket.php
 $quantity) {
        $sql = "SELECT * FROM products WHERE productID = '$product_id'";
        $result = mysqli_query($conn, $sql);
        if (!$result) {
            die('Error getting product details: ' . mysqli_error($conn));
        }
        $product = mysqli_fetch_assoc($result);
        $product['quantity'] = $quantity;
        $cart_items[] = $product;
    }

    // Close the database connection
    mysqli_close($conn);
}
?>



    
    <



    
Shopping Cart
    
        

            

                

                    
Image
                    
Product Name
                    
Unit Price
                    
Quantity
                    
Discount
                    
Amount
                
            
            

                
                

                    

                    

                    
$
                    

                    

                    
$
                
                
            
        
    
        
Your cart is empty.
    





// get_product_details.php
 $quantity) {
    $sql = "SELECT * FROM products WHERE productID = '$product_id'";
    $result = mysqli_query($conn, $sql);
    if (!$result) {
        die('Error getting product details: ' . mysqli_error($conn));
    }
    $product = mysqli_fetch_assoc($result);
    $product['quantity'] = $quantity;
    $cart_items[] = $product;
}

// Close the database connection
mysqli_close($conn);
?>




    
    rel="stylesheet">


 $cart_item): ?>
        

    

        

            
            
Product Name
            
Product ID
            
Unit Price
            
Quantity
            
Discount
            
Amount
            
        
    
    

        

            
            

            

            
$
            

            

            
$
            

                

                    
                    Remove
                
            
        
        
    





// jquery code
function addToCart(productId, quantity) {
  var cart = getCart();
  if (cart.hasOwnProperty(productId)) {
    var newQuantity = parseInt(quantity);
    if (newQuantity <= 0) {
      delete cart[productId];
    } else {
      cart[productId] = newQuantity;
    }
  } else {
    cart[productId] = parseInt(quantity);
  }
  saveCart(cart);
  updateCartCount();
  calculate_total();

  // Display message
  var productName = $('#product-name-' + productId).text();
  $('#cart-message').text(quantity + 'x ' + productName + ' added to cart').show();
  
  setTimeout(function() {
    $('#cart-message').fadeOut('slow');
  }, 3000);
}

function calculate_total() {
  var cart = getCart();
  var total = 0;
  for (var productId in cart) {
    var product = getProductId(productId);
    var price = parseFloat(product.price);
    var quantity = parseInt(cart[productId]);

    // Send request to server to get discount for the product
    $.ajax({
      url: 'get_product_details.php',
      data: {productId: productId},
      dataType: 'json',
      success: function(data) {
        // Update HTML elements with discount and amount
        var discount = parseFloat(data.discount);
        var amount = price * quantity * (1 - discount);
        $('#discount-' + productId).text((discount * 100).toFixed(0) + '%');
        $('#amount-' + productId).text('$' + amount.toFixed(0));
      },
      error: function(xhr, textStatus, errorThrown) {
        console.log('Error getting product details: ' + errorThrown);
      }
    });