(PECL mongo >=0.9.5) Check if there was an error on the most recent db operation performed

(PECL mongo >=1.6.0) Returns information about collections in this database

(PECL mongo >=0.9.5) Clears any flagged errors on the database

(PECL mongo >=0.9.0) Returns the current element

(PECL mongo >=0.9.0) Creates new file collections

(PECL mongo >=0.9.0) Fetches toolkit for dealing with files stored in this database

(PECL mongo >=0.9.2) Counts the number of results for this query

(PECL mongo >=0.9.0) Create a new cursor public

(PECL mongo >=0.9.0) Drops a collection [deprecated]

(PECL mongo >=1.5.0) Set the write concern for this database