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

(PHP 5 >= 5.5.0, PHP 7) Removes the named savepoint from the set of savepoints of the current transaction

(PHP 5, PHP 7) Returns the number of parameter for the given statement

(PHP 5 < 5.4.0) Alias for

(PHP 5, PHP 7) Execute an SQL query bool mysqli::real_query

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

(PHP 5 >= 5.4.0, PHP 7) Returns a list of errors from the last statement executed

(PHP 5, PHP 7) Enables or disables internal report functions

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

(PHP 5, PHP 7) Dump debugging information into the log