(PHP 5, PHP 7) Returns the MySQL client version as a string

(PHP 5, PHP 7) Send the query and return bool

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

(PHP 5, PHP 7) Returns the default character set for the database connection

(PHP 5, PHP 7) Returns the error code from last connect call

(PHP 5, PHP 7) Performs debugging operations

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

(PHP 5, PHP 7) Frees stored result memory for the given statement handle

(PHP 5, PHP 7) Transfers a result set from the last query

(PHP 5, PHP 7) Returns the lengths of the columns of the current row in the result set