SupportBox::getMessage

static function getMessage(string $code, string $defaultPhrase = ''): ?string
{
	static $messages;
	if ($messages === null)
	{
		$messages = unserialize(
			Option::get(self::MODULE_ID, self::OPTION_BOT_MESSAGES, 'a:0:{}'),
			['allowed_classes' => false]
		);
	}

	return isset($messages[$code]) ? $messages[$code] : $defaultPhrase;
}