(PHP 5, PHP 7) Gets the number of rows in a result

(PHP 5, PHP 7) Opens a connection to a mysql server

(PHP 5, PHP 7) Rolls back current transaction

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

(PHP 5, PHP 7) Check if there are any more query results from a multi query

(PHP 5, PHP 7) Closes a previously opened database connection

(PHP 5, PHP 7) Returns a string description for last statement error

(PHP 5, PHP 7) Executes a prepared Query bool

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

(PHP 5, PHP 7) Fetch meta-data for a single field