(PHP 5, PHP 7) Changes the user of the specified database connection

(PHP 5 >= 5.5.0, PHP 7) Starts a transaction

(PHP 5, PHP 7) Transfers a result set from a prepared statement

(PHP 5, PHP 7) Turns on or off auto-committing database modifications

(PHP 5, PHP 7) Prepare an SQL statement for execution

(PHP 5, PHP 7) Set result pointer to a specified field offset

(PHP 5 >= 5.3.0, PHP 7) Gets a result set from a prepared statement

(PHP 5, PHP 7) Returns the current row of a result set as an object

(PHP 5 >= 5.1.0, PHP 7) Get result of SHOW WARNINGS

(PHP 5 < 5.3.0) Check if RPL parse is enabled