验证我的购物车中是否有产品

Question

I have a cart in PHP and I wonder how I could look in the cart if there is a product? verify it and if there is a true throw product example: id name price 1 rock $ 10.00 US (I'm a cheapskate)

if (isset($_SESSION['cart']) && !empty($_SESSION['cart'])) {
        foreach ($_SESSION['cart'] as $c) {
            $query = "SELECT * FROM c_inventario WHERE id = " . $c['id'] . "";
            $result = $conn->obtDatos($query);
            if ($conn->filasConsultadas > 0) {
                foreach ($result as $dts) {
                    $nombre = $dts['nombre'];//name
                    $precio = $dts['precio'];//price
                }
            }
        }
    }

with the previous code, I only obtain the products of the car, in case it is in the session