MongoGridFS::__construct Creates new file collections &reftitle.description; public MongoGridFS::__construct MongoDBdb stringprefix"fs" mixedchunks"fs" 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. &reftitle.parameters; db Database. files Optional collection name prefix.