Phoca Guestbook is Joomla! CMS component. It displays guestbook form with Captcha (8 types of Captcha) and many other different internal or external spam protection methods.
Requirements:
- Joomla 1.5, 2.5, 3, 4 or any later version
- PHP 4, 5, 7, 8 (or any later version) with GD library (graphics library for CAPTCHA creation). See Joomla! requirements for each version.