GBException::formatHTMLBlock PHP Method

    public static function formatHTMLBlock(Exception $e, $includingTrace = true, $skip = null, $context_lines = 2, $inc_css = true)
    {
        $msg = self::format($e, $includingTrace, true, $skip, $context_lines);
        if ($inc_css) {
            $msg = '<style type="text/css" media="screen">' . self::$css . '</style>' . $msg;
        }
        return '<div class="exception">' . $msg . '</div>';
    }

function gb_exception_handler($e)
{
    if (ini_get('html_errors')) {
        if (headers_sent()) {
            $msg = GBException::formatHTMLBlock($e);
        } else {
            $msg = GBException::formatHTMLDocument($e);
        }
    } else {
        $msg = GBException::format($e, true, false, null, 0);
    }
    exit($msg);
}