Contao\FormExplanation::generate PHP Method

    public function generate()
    {
        $this->text = \StringUtil::toHtml5($this->text);
        // Add the static files URL to images
        if (TL_FILES_URL != '') {
            $path = \Config::get('uploadPath') . '/';
            $this->text = str_replace(' src="' . $path, ' src="' . TL_FILES_URL . $path, $this->text);
        }
        return \StringUtil::encodeEmail($this->text);
    }