(PHP 5, PHP 7) Returns the number of columns for the most recent query

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

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

(PHP 5 >= 5.3.0, PHP 7) Fetches all result rows as an associative array, a numeric array, or both

(PHP 5, PHP 7) Closes a prepared statement bool

(PHP 5, PHP 7) Returns the number of warnings from the last query for the given link

(PHP 5, PHP 7) Commits the current transaction

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

(PHP 5, PHP 7) Retrieves information about the most recently executed query

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