(PHP 5, PHP 7, PECL OCI8 >= 1.1.0) Rolls back the outstanding database transaction

(PHP 4, PHP 5, PHP 7, PECL OCI8 >= 1.0.0) Alias of

(PHP 4, PHP 5, PHP 7) Synchronize database bool

(PECL maxdb >= 1.0) Returns the current row of a result set as an object

(PHP 5 >= 5.3.0, PHP 7) Binds a parameter to a statement variable

(PECL maxdb >= 1.0) Performs a query on the database

(PHP 4 >= 4.0.6, PHP 5 <= 5.0.5, PECL dbx >= 1.1.0) Report the error message of the latest function

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

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Gets the client encoding

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Rollback a transaction to the database