Captcha Image Verification PHP Script
CAPTCHA – Completely Automated Public Turing test to tell Computers & Human Apart. Captcha is used as a image recognition tool to get rid of spammers and robot(bot). Only the human can do these image recognition and robots cant recognise them. So this type of human authentication becomes necessary for form submission pages. This free utility Captcha Image verification code can be used to create a random captcha image on every reload of the page. The pictures are created by using the combination
- Random captcha pictures are displayed by using alphanumeric characters.
- Captcha images created randomly can be checked for human authentication.
- You can validate the form by using the captcha image verification tool.
- Simple to use. Just download and use the code.