Conexão OK. Coleções encontradas em 'portalensp':
 - fs.files
 - fs.chunks
 - documentos

Primeiro documento de 'fs.files':
MongoDB\Model\BSONDocument Object
(
    [storage:ArrayObject:private] => Array
        (
            [_id] => MongoDB\BSON\ObjectId Object
                (
                    [oid] => 5c54765433b4ce3f4c5a5e2e
                )

            [chunkSize] => 261120
            [filename] => destaques_homolog_banner.pdf
            [uploadDate] => MongoDB\BSON\UTCDateTime Object
                (
                    [milliseconds] => 1549039188661
                )

            [length] => 15403445
            [md5] => 48c71480a6e234c69d1fe1fd126a9f12
        )

)