add to cart using session and sweet alert

add to cart number increase using sweet alert

		<?php 
		if(isset($_GET['view'])){
			$v_id = $_GET['view'];
		}
           $query = "SELECT * FROM products WHERE id = $v_id";
        $select_image = mysqli_query($connection, $query); 

      while($row = mysqli_fetch_assoc($select_image)){
          $id = $row['id'];
          $product_name = $row['product_name'];
          $price = $row['price'];
          }
?>

// this is for sending data into seeion variable 
<input type="hidden" name="hidden_name" id="name<?php echo $id; ?>" value="<?php echo $product_name; ?>" />
									<input type="hidden" name="hidden_price" id="price<?php echo $id; ?>" value="<?php echo $price; ?>" />
									<!-- <input type="text" name="hidden_price" id="price'.<?php echo $id; ?>'" value="price<?php echo $id; ?>" /> -->
									<input type="hidden" name="quantity" id="quantity<?php echo $id; ?>" class="form-control" value="1" />
									<!-- <input type="button" name="add_to_cart" class="flex-c-m stext-101 cl0 size-101 bg1 bor1 hov-btn1 p-lr-15 trans-04 js-addcart-detail" value="Add to cart <?php echo $id; ?>"> -->
									
									<button class="flex-c-m stext-101 cl0 size-101 bg1 bor1 hov-btn1 p-lr-15 trans-04 js-addcart-detail add_to_cart" name="add_to_cart" id="<?php echo $id; ?>">
										Add to cart <?php echo $id; ?>
									</button>
                  
                  
//
ajax request for add to card into session variable 

	$(document).on('click', '.add_to_cart', function(){
		var product_id = $(this).attr("id");
		var product_name = $('#name'+product_id+'').val();
		var product_price = $('#price'+product_id+'').val();
		var product_quantity = $('#quantity'+product_id).val();
		var action = "add";
		if(product_quantity > 0)
		{
			$.ajax({
				url:"action.php",
				method:"POST",
				data:{product_id:product_id, product_name:product_name, product_price:product_price, product_quantity:product_quantity, action:action},
				success:function(data)
				{
					// load_cart_data();
					// location.reload(); 
					// alert("Item has been Added into Cart");
				}
			});
		}
		else
		{
			alert("lease Enter Number of Quantity");
		}
	});
  
  //action.php (create this file)
  
  <?php

//action.php

session_start();

if(isset($_POST["action"]))
{
	if($_POST["action"] == "add")
	{
		if(isset($_SESSION["shopping_cart"]))
		{
			$is_available = 0;
			foreach($_SESSION["shopping_cart"] as $keys => $values)
			{
				if($_SESSION["shopping_cart"][$keys]['product_id'] == $_POST["product_id"])
				{
					$is_available++;
					$_SESSION["shopping_cart"][$keys]['product_quantity'] = $_SESSION["shopping_cart"][$keys]['product_quantity'] + $_POST["product_quantity"];
				}
			}
			if($is_available == 0)
			{
				$item_array = array(
					'product_id'               =>     $_POST["product_id"],  
					'product_name'             =>     $_POST["product_name"],  
					'product_price'            =>     $_POST["product_price"],  
					'product_quantity'         =>     $_POST["product_quantity"]
				);
				$_SESSION["shopping_cart"][] = $item_array;
			}
		}
		else
		{
			$item_array = array(
				'product_id'               =>     $_POST["product_id"],  
				'product_name'             =>     $_POST["product_name"],  
				'product_price'            =>     $_POST["product_price"],  
				'product_quantity'         =>     $_POST["product_quantity"]
			);
			$_SESSION["shopping_cart"][] = $item_array;
		}
	}

	if($_POST["action"] == 'remove')
	{
		foreach($_SESSION["shopping_cart"] as $keys => $values)
		{
			if($values["product_id"] == $_POST["product_id"])
			{
				unset($_SESSION["shopping_cart"][$keys]);
			}
		}
	}
	if($_POST["action"] == 'empty')
	{
		unset($_SESSION["shopping_cart"]);
	}
}

// echo $_SESSION["shopping_cart"];


foreach($_SESSION["shopping_cart"] as $result) {
	echo "<pre>";
    print_r($result);
    // var_dump($result);
    // echo $result["product_quantity"];
	echo "</pre>";


// foreach($_SESSION["shopping_cart"] as $keys => $values)
// 		{
// 	echo "<pre>";
// 	echo $values["product_quantity"];
// 	echo "</pre>";
// 	$item = $values["product_quantity"];
			
// 		}
// 		echo $item;
}


$itemtotal = 0;

foreach($_SESSION["shopping_cart"] as $item) {
	$itemtotal += $item['product_quantity'];
}

echo $itemtotal; // output 5 


?>