public function sqlQueryCheck($q)
    {
        if (\stripos($q, 'union') !== false) {
            dump('UNION usage is limited.');
        }

        if (\stripos($q, ' like \'%\'') !== false) {
            dump('LIKE \'%\' usage is limited.');
        }

        if (\strpos($q, '/*') !== false || \strpos($q, '--') !== false) {
            dump('Comments like \* or -- usage is limited. Query: ' . $q);
        }
    }