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

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

(PHP 5, PHP 7) Escapes special characters in a string for use in an SQL statement, taking into account the current

(PHP 5 >= 5.3.0, PHP 7) Returns statistics about the client connection

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

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

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

(PHP 5, PHP 7) Initializes MySQLi and returns a resource for use with mysqli_real_connect()

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

(PHP 5, PHP 7) Frees the memory associated with a result