VersionPress\Storages\Storage::flattenEntity PHP Méthode

    private function flattenEntity($entity)
    {
        if (count($entity) === 0) {
            return $entity;
        }
        reset($entity);
        $vpid = key($entity);
        $flatEntity = $entity[$vpid];
        $flatEntity[$this->entityInfo->vpidColumnName] = $vpid;
        return $flatEntity;
    }