(PECL maxdb >= 1.0) Closes a previously opened database connection

(PECL mongo >= 0.8.1) The string representation of this binary data object.

(PECL maxdb >= 1.0) Executes a prepared Query

(PHP 5, PHP 7, PECL OCI8 >= 1.1.0) Imports file data to the LOB

(PECL mongo >=0.9.2) Execute a database command

(PECL mongo >=1.3.3) Get the read preference for this query

(PECL mongo >=0.9.0) Fetches the document pointed to by a database reference

(PHP 4, PHP 5, PHP 7) Open database resource

(PECL mongo >= 1.0.8) Create a dummy MongoId

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