(PECL mongo >=1.3.0) Returns a resource that can be used to read the stored file

(PECL mongo >=0.9.0) Returns a single file matching the criteria

(PECL mongo >=0.9.0) Drops this database public

(PECL mongo >=0.9.0) Limits the number of results returned

(PECL mongo >=1.0.1) Log in to this database

(PECL mongo >=0.9.0) Returns this file's size

(PECL mongo >=0.9.0) Gets this database's profiling level

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

(PECL mongo >=0.9.0) Gets a collection public

(PECL mongo >= 0.9.0) Checks if an array is a database reference