mysqli_debug mysqli->debug() Performs debugging operations &reftitle.description; Procedural style: boolmysqli_debug stringmessage Object oriented style (method): mysqli booldebug stringmessage Performs debugging operations using the Fred Fish debugging library. &reftitle.parameters; message A string representing the debugging operation to perform &reftitle.returnvalues; Returns &true;. &reftitle.notes; To use the mysqli_debug function you must complile the MySQL client library to support debugging. &reftitle.examples; Generating a Trace File ]]> &reftitle.seealso; mysqli_dump_debug_info mysqli_report