Formal\Element::posted PHP Method

    function posted()
    {
        $aPost = \Flake\Util\Tools::POST("witness");
        if (is_array($aPost)) {
            $sProp = $this->option("prop");
            return array_key_exists($sProp, $aPost) && intval($aPost[$sProp]) === 1;
        }
        return false;
    }