CAPTCHA validation using PHP and Ajax
CAPTCHA has become a popular means of securing forms against automated submission, by requiring users to enter a string displayed in an automatically generated image. This implementation uses Ajax to conveniently combine CAPTCHA into normal pre-submission form verification. You'll need PHP to be installed with the GD image library (most PHP implementations will have this as standard).Visit publisher site: CAPTCHA validation using PHP and Ajax
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This is the first Ajax-enabled PHP script I've tried for CAPTCHA validation. It works! I'm very grateful to the author. Really!!! Thanks. Keep up the good work.