$directory = "../assets/product_image/";
        if (!dir($directory)) {
            die("Directory Not Found");
        }

        $path = $_FILES['product_image']['name'];
        $ext = pathinfo($path, PATHINFO_EXTENSION);

        $target_file = $directory . "product_" . uniqid() . "." . $ext;

        $file_type = pathinfo($target_file, PATHINFO_EXTENSION);
        $file_size = $_FILES['product_image']['size'];
        $is_image = getimagesize($_FILES['product_image']['tmp_name']);

        if ($is_image) {
            if (file_exists($target_file)) {
                echo 'This file Already exists';
                exit();
            } else {
                if ($file_size > 5242880) {
                    echo 'File Size is Too Large.Please select a size within 5mb';
                    exit();
                } else {
                    if ($file_type != 'jpg' && $file_type != 'png') {
                        die("File type is not vaild");
                    } else {

                        if (move_uploaded_file($_FILES['product_image']['tmp_name'], $target_file)) {
                            $sql = "INSERT INTO tbl_product(product_name,category_id,sub_category_id,manufacturer_id,product_price,stock_quantity,product_sku,product_short_description,product_long_description,product_image,publication_status) VALUES('$data[product_name]','$data[category_id]','$data[sub_category_id]','$data[manufacturer_id]','$data[product_price]','$data[stock_quantity]','$data[product_sku]','$data[product_short_description]','$data[product_long_description]','$target_file','$data[publication_status]')";
                            if (mysqli_query($this->connect(), $sql)) {
                                $message = "Product Informations Successfully Saved";
                                return $message;
                            } else {
                                die("Query Problem") . mysqli_error($this->connect());
                            }
                        } else {
                            die("Product Image Upload Error");
                        }
                    }
                }
            }
        } else {
            echo 'This is not a image';
        }