if (!empty($fn)) {
        $file = $_FILES['edit_addi_food_image'];
        $check = getimagesize($_FILES["edit_addi_food_image"]["tmp_name"]);
        if ($check !== false) {
            $file_path = $target_dir . $file['name'];
            move_uploaded_file($file['tmp_name'], $file_path);
            $image = $file['name'];
            //call function to modify Additional Food
            updateAdditionalFood($name, $cost, $keys, $image, $id);
        }
    } else {
        updateAdditionalFoodWithoutImage($name, $cost, $keys, $id);
    }
    //return updated data
    if (isset($_POST['special'])) {
        $row = addiFoodFull();
    } else {
        $row = addiFood();
    }
    $resp = $row;
    echo json_encode($resp);
} elseif (isset($_POST['newSetMenuTitle'])) {
    // add set menu
    $title = $_POST['newSetMenuTitle'];
    $items = $_POST['newSetMenuItems'];
    $cost = $_POST['newSetMenuCost'];
    insertNewSetItems($title, $items, $cost);
    $row = setMenu();
    $resp = $row;
    echo json_encode($resp);
} elseif (isset($_POST['setMenuKey'])) {
function getAllFullFood()
{
    $addiFoodFull = addiFoodFull();
    return $addiFoodFull;
}
function additionalFoodFull()
{
    $addiFoodFull = addiFoodFull();
    return $addiFoodFull;
}