if ($string == 'Hack attempt') d(debug_backtrace());

/**
    * Display an error according to an error code
    *
    * @param integer $code Error code
    */
    static public function displayError($string = 'Hack attempt', $htmlentities = true)
    {
        global $_ERRORS;

        //d(debug_backtrace());
        if (!is_array($_ERRORS))
            return str_replace('"', '"', $string);
        $key = md5(str_replace('\'', '\\\'', $string));
        $str = (isset($_ERRORS) AND is_array($_ERRORS) AND key_exists($key, $_ERRORS)) ? ($htmlentities ? htmlentities($_ERRORS[$key], ENT_COMPAT, 'UTF-8') : $_ERRORS[$key]) : $string;
        return str_replace('"', '"', stripslashes($str));
    }

//d(debug_backtrace());

global $_ERRORS;

        if ($string == 'Hack attempt') d(debug_backtrace());
        if (!is_array($_ERRORS))

if (!Validate::isLoadedObject($state))