A highly customizable PHP CAPTCHA class for generating CAPTCHA images to prevent programs from filling out your forms. This does everything from create and output the image, to validate the code entered by the user in the form. Support for creating audible CAPTCHA codes in WAV format. It can show an image in just 3 lines of code, and validate the text in about 6 lines. This supports variable length codes, user defined character sets, custom TTF fonts, custom colors, multi-colored letters, skew lines through text, optional lines to obfuscate text, angled text, transparent text and more. Read codes from a dictionary file instead of using random strings. Includes several examples. Support available.
