Dump debugging information into the log mysqli::debug mysqli->errno MySQLi PHP Manual mysqli::dump_debug_info mysqli_dump_debug_info (PHP 5)mysqli::dump_debug_info -- mysqli_dump_debug_info — Dump debugging information into the log Description Object oriented style (method): bool mysqli::dump_debug_info ( void ) Procedural style: bool mysqli_dump_debug_info ( mysqli $link ) This function is designed to be executed by an user with the SUPER privilege and is used to dump debugging information into the log for the MySQL Server relating to the connection. Parameters link Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init() Return Values Returns TRUE on success or FALSE on failure. See Also mysqli_debug() mysqli::debug mysqli->errno MySQLi PHP Manual