(PHP 5 >= 5.1.0, PHP 7) Returns a character set object

(PHP 5, PHP 7) Returns the version of the MySQL server as an integer

(PHP 5, PHP 7) Get MySQL client info string

(PHP 5, PHP 7) Commits the current transaction

(PHP 5, PHP 7) Performs a query on the database

(PHP 5, PHP 7) Returns a string description of the last error

(PHP 5, PHP 7) Prepare next result from multi_query

(PHP 5, PHP 7) Returns the error code for the most recent function call

(PHP 5 >= 5.3.0, PHP 7) Poll connections public

(PHP 5 >= 5.3.0, PHP 7) Returns client per-process statistics