(PHP 5, PHP 7) Get the ID generated from the previous INSERT operation

(PHP 5, PHP 7) Pings a server connection, or tries to reconnect if the connection has gone down

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

(PHP 5, PHP 7) Get the number of fields in a result

(PHP 5, PHP 7) Binds variables to a prepared statement as parameters

(PHP 5, PHP 7) Transfers a result set from a prepared statement

(PHP 5, PHP 7) Fetch a result row as an associative array

(PHP 5, PHP 7) Set result pointer to a specified field offset

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

(PHP 5, PHP 7) Selects the default database for database queries