DSNConfigurator::configureOptions( PHPMailer\PHPMailer\PHPMailer $mailer, array $options )

173    private function configureOptions(PHPMailer $mailer, $options)174    {175        $allowedOptions = get_object_vars($mailer);176 177        unset($allowedOptions['Mailer']);178        unset($allowedOptions['SMTPAuth']);179        unset($allowedOptions['Username']);180        unset($allowedOptions['Password']);181        unset($allowedOptions['Hostname']);182        unset($allowedOptions['Port']);183        unset($allowedOptions['ErrorInfo']);184 185        $allowedOptions = \array_keys($allowedOptions);186 187        foreach ($options as $key => $value) {188            if (!in_array($key, $allowedOptions)) {189                throw new Exception(190                    sprintf(191                        'Unknown option: "%s". Allowed values: "%s"',192                        $key,193                        implode('", "', $allowedOptions)194                    )195                );196            }197 198            switch ($key) {199                case 'AllowEmpty':200                case 'SMTPAutoTLS':201                case 'SMTPKeepAlive':202                case 'SingleTo':203                case 'UseSendmailOptions':204                case 'do_verp':205                case 'DKIM_copyHeaderFields':206                    $mailer->$key = (bool) $value;207                    break;208                case 'Priority':209                case 'SMTPDebug':210                case 'WordWrap':211                    $mailer->$key = (int) $value;212                    break;213                default:214                    $mailer->$key = $value;215                    break;216            }217        }218    }