Prado\TApplicationStatePersister::save PHP Метод

    public function save($state)
    {
        $content = serialize($state);
        $saveFile = true;
        if (($cache = $this->getApplication()->getCache()) !== null) {
            if ($cache->get(self::CACHE_NAME) === $content) {
                $saveFile = false;
            } else {
                $cache->set(self::CACHE_NAME, $content);
            }
        }
        if ($saveFile) {
            $fileName = $this->getStateFilePath();
            file_put_contents($fileName, $content, LOCK_EX);
        }
    }