MyBuilder\Cronos\Updater\CronUpdater::updateContent PHP Method

    private function updateContent(Cron $cron, $key)
    {
        $content = $this->cronManipulator->getContent();
        $count = 0;
        $pattern = '/\\r?\\n' . $this->beginKey($key) . '.*?' . self::KEY_END . '/s';
        $replacedContent = preg_replace($pattern, $this->wrapInKey($cron, $key), $content, -1, $count);
        if ($count > 0) {
            return $replacedContent;
        }
        return $this->appendContent($cron, $key, $content);
    }