$g_timer->display();
    // to output html formated
}
if (isset($g_error_messages)) {
    echo "<!-- error_messages:\n", print_r($g_error_messages, true), "\n-->\n";
}
if (isset($g_log_queries)) {
    echo "<!-- log_queries:\n", print_r($g_log_queries, true), "\n-->\n";
}
echo "<!-- included:\n", print_r(get_included_files(), true), "\n-->\n";
if (class_exists('Cache', false)) {
    echo "<!-- cache:\n", htmlspecialchars(print_r(Cache::factory('all_instances'), true)), "\n-->\n";
}
if (class_exists('Da_Wrapper', false)) {
    echo "<!-- dbos\n";
    foreach (Da_Wrapper::getDbos() as $key => $dbo) {
        echo $key, ":\n";
        echo 'class: ', get_class($dbo), ":\n";
        print_r($dbo->errorInfo());
        if (property_exists($dbo, 'logs')) {
            echo 'logs:', PHP_EOL;
            print_r($dbo->logs);
        }
        //echo 'querynum: ', $dbo->querynum, ":\n";
        //print_r($dbo->queries);
    }
    echo "\n-->\n";
}
if (class_exists('Db_Factory', false)) {
    //var_dump(Db_Factory::getDbos());
    foreach (Db_Factory::getDbos() as $key => $dbo) {