Pimcore\Model\Version::loadData PHP Method

    public function loadData()
    {
        $data = null;
        $zipped = false;
        // check both the legacy file path and the new structure
        foreach ([$this->getFilePath(), $this->getLegacyFilePath()] as $path) {
            if (file_exists($path)) {
                $filePath = $path;
                break;
            }
            if (file_exists($path . ".gz")) {
                $filePath = $path . ".gz";
                $zipped = true;
                break;
            }
        }
        if ($zipped && is_file($filePath) && is_readable($filePath)) {
            $data = gzdecode(file_get_contents($filePath));
        } elseif (is_file($filePath) && is_readable($filePath)) {
            $data = file_get_contents($filePath);
        }
        if (!$data) {
            Logger::err("Version: cannot read version data from file system.");
            $this->delete();
            return;
        }
        if ($this->getSerialized()) {
            $data = Serialize::unserialize($data);
        }
        if ($data instanceof Asset && file_exists($this->getBinaryFilePath())) {
            $binaryHandle = fopen($this->getBinaryFilePath(), "r+", false, File::getContext());
            $data->setStream($binaryHandle);
        } elseif ($data instanceof Asset && $data->data) {
            // this is for backward compatibility
            $data->setData($data->data);
        }
        $data = Element\Service::renewReferences($data);
        $this->setData($data);
        return $data;
    }