Visual and Audio PHP CAPTCHA Generation Class - Ed EliotPressure is nothing more than the shadow of great opportunity. - Michael Johnson PhpCaptcha is a library for generating visual and audio CAPTCHAs (completely automated public Turing test to tell computers and humans apart). You can read more about CAPTCHAs at Wikipedia. It can help you to prevent/reduce: Automated sign-ups in registration forms. Comment spam in blogs and guestbooks. Brute forc
