MySQLi Driver.
The Client API header version
The Client version
The MySQLi Driver version
Whether MySQLi Embedded support is enabled
Allow or prevent reconnect (see the mysqli.reconnect INI directive)
Set to MYSQLI_REPORT_OFF, MYSQLI_REPORT_ALL or any combination of MYSQLI_REPORT_STRICT (throw Exceptions for errors), MYSQLI_REPORT_ERROR (report errors) and MYSQLI_REPORT_INDEX (errors regarding indexes). See also mysqli_report().