PHP Classes

iCaptcha: CAPTCHA validation asking questions about pictures

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This class can be used to implement a CAPTCHA validation method that asks questions about pictures to the user.

It presents several images and asks the user to answer a question related to the pictures. Only one picture is the right answers. The user has to pick the right picture to pass the validation.

The class presents the question and pictures in a form with radio buttons associated to each picture to let the user pick the right picture that answers the question.

The information about the pictures that the user picks is stored in a MySQL database.

Innovation Award
PHP Programming Innovation award nominee
July 2007
Number 6

Prize: One copy of Delphi for PHP
Many CAPTCHA implementations have been implemented lately to improve past solutions to make it difficult for robots pretend to be real human users and commit many types of site abuses.

This package provides another kind of CAPTCHA implementation. It asks questions that are easy to answer a real human being, but are hard or even impossible to answer for robots that are not trained.

Manuel Lemos
Picture of Er. Rochak Chauhan
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Name: Er. Rochak Chauhan is available for providing paid consulting. Contact Er. Rochak Chauhan .
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Innovation award
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  • iCaptcha
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Accessible without login Plain text file iCaptca.sql Doc. Database Structure

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