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

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

(PHP 5, PHP 7) Returns RPL query type int my

(PHP 5, PHP 7) Initializes a statement and returns an object for use with mysqli_stmt_prepare

(PHP 5, PHP 7) Gets the current system status

(PHP 5 >= 5.1.0, PHP 7) Returns a character set object

(PHP 5, PHP 7) Initiate a result set retrieval

(PHP 5, PHP 7) Prepare next result from multi_query

(PHP 5 >= 5.3.0, PHP 7) Get result from async query

(PHP 5, PHP 7) Returns the auto generated id used in the last query