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iCaptcha: CAPTCHA validation asking questions about pictures

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Last Updated Ratings Unique User Downloads Download Rankings  
2007-08-20 (7 years ago) RSS 2.0 feedStarStarStarStar 69%Total: 1,397 This week: 2All time: 2,605 This week: 817Up
Version License PHP version Categories  
icaptcha 1Free For Educational Use5PHP 5, Databases, Graphics, Validation, S...
Description Author  

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
Name: Er. Rochak Chauhan is available for providing paid consulting. Contact Er. Rochak Chauhan .
Classes: 52 packages by
Country: India India
Age: 36
All time rank: 21 in India India
Week rank: 10 Down3 in India India Down
Innovation award
Innovation award
Nominee: 14x

Winner: 3x

Screenshots  
  • iCaptcha
  Files folder image Files  
File Role Description
Plain text file iCaptcha.inc.php Class Class
Accessible without login Plain text file example.php Example Example
Accessible without login Plain text file iCaptca.sql Doc. Database Structure

 Version Control Unique User Downloads Download Rankings  
 0%Total:1,397All time:2,605
 This week:2This week:817Up
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Utility:91%StarStarStarStarStar
Consistency:91%StarStarStarStarStar
Documentation:66%StarStarStarStar
Examples:75%StarStarStarStar
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Overall:69%StarStarStarStar
Rank:261