mysqli_report Enables or disables internal report functions boolmysqli_report intflags mysqli_report is a powerful function to improve your queries and code during development and testing phase. Depending on the flags it reports errors from mysqli function calls or queries which don't use an index (or use a bad index). Name Description MYSQLI_REPORT_OFF Turns reporting off MYSQLI_REPORT_ERROR Report errors from mysqli function calls MYSQLI_REPORT_INDEX Report if no index or bad index was used in a query MYSQLI_REPORT_ALL Set all options (report all) &reftitle.returnvalues; &return.success; &reftitle.seealso; mysqli_debug&listendand; mysqli_dump_debug_info. &reftitle.examples; query("SELECT Name FROM Nonexistingtable WHERE population > 50000"); /* this query should report a warning */ $result = $mysqli->query("SELECT Name FROM City WHERE population > 50000"); $result->close(); $mysqli->close(); ?> ]]>