Forms Validator: CAPTCHA validation of forms using security images

This class is meant to add security to your forms generating images to perform CAPTCHA validation (Completely Automated Public Turing to tell Computers from Humans Apart).

It generates images with random words or uses the words that you may provide.

The images are generated with random colors and fonts, avoiding replication on other sites. You can add other colors and fonts.

The word used in the generated image is stored on the PHP session variables for security verification.