MongoGridFS::__construct Creates new file collections &reftitle.description; MongoGridFS::__construct MongoDBdb stringfiles&null; stringchunks&null; Files as stored across two collections, the first containing file meta information, the second containing chunks of the actual file. By default, fs.files and fs.chunks are the collection names used. Use one argument to specify a prefix other than "fs": uses myfiles.files and myfiles.chunks collections. Use two arguments to fully specify the collection names: uses myfiles and mychunks collections. &reftitle.parameters; db Database. files Optional files collection name. If chunks is not given, files is used as both collections' prefix. chunks Optional chunks collection name.