Description:

Learn how to protect your website from crawlers and SPAM robots. Create your own CAPTCHA using the PHP GD library. The Font used in this tutorial is called Anonymous Clippings and was obtained at dafont.com http://www.dafont.com/anonymous-clippings.font In this part we develop the captcha class and implement all the static methods that we will be using. Using the output buffer we return the image base64 encoded into the html file. We test the captcha using a form that requires the user to input the code that appears in the image. Download Source