App\FieldTypes\CellPhoneNumber::registerValidator PHP Method

    protected function registerValidator()
    {
        app('validator')->extend('cell_phone_number', function ($attribute, $value, $parameters) {
            $value = str_replace(['-', ' '], '', $value);
            if (is_numeric($value) === false) {
                return false;
            }
        }, xe_trans('mngCellPhoneNumberValidate'));
    }