Graphics: CAPTCHA Arg
Javier (contact me)
This class can be used to display and validate text in CAPTCHA images.
It can generate a random text and generate an image with the text rendered over a base background image.
The generate image is saved to a server side file in the PNG format.
The class can also verify the validation text, as well generate HTML to display the image along a form text input to let the user enter the validation text.
The code and the comments are in Spanish.
Click here for detailed information about this class on phpclasses.org
Php Handleiding