(PECL mongo >=1.0.8)
MongoGridFS::put — Stores a file in the database
$metadata= array() ] )
Name of the file to store.
Other metadata fields to include in the file document.
These fields may also overwrite those that would be created automatically by the driver, as described in the MongoDB core documentation for the » files collection. Some practical use cases for this behavior would be to specify a custom chunkSize or _id for the file.
Returns the _id of the saved file document. This will be a generated MongoId unless an _id was explicitly specified in the