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Friendly CAPTCHA: CAPTCHA validation using text with math expression

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Last Updated Ratings Unique User Downloads Download Rankings
2009-06-03 (7 years ago) RSS 2.0 feedNot enough user ratingsTotal: 977 All time: 3,566 This week: 924Up
Version Licenses PHP version Categories
friendlycaptcha 1.01GNU Free Document...5.0PHP 5, Validation, Security
Description Author

This package can be used to implement CAPTCHA validation using text with math expression.

There is a base class that can display a text message to tell the user what he needs to input.

A math subclass generates an expression with a random math operation between two number values.

The user must enter the result of the operation to pass the CAPTCHA validation. The correct answer is stored in session variables for posterior validation.

Picture of Chris Hepner
Name: Chris Hepner <contact>
Classes: 1 package by
Country: United States United States

  Files folder image Files  
File Role Description
Files folder imagelibrary (2 files)
Accessible without login Plain text file example.php Example Example implementation
Accessible without login Plain text file example_submit.php Example Example Implementation (part 2)
Accessible without login Plain text file LICENSE.TXT Lic. Software license

  Files folder image Files  /  library  
File Role Description
  Plain text file FriendlyCaptcha.class.php Class Friendly Captcha Class
  Plain text file MathCaptcha.class.php Class Math Captcha Class (Requires FriendlyCaptcha)

Downloadfriendlycaptcha-2009-06-03.zip 18KB
Downloadfriendlycaptcha-2009-06-03.tar.gz 16KB
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Total:977
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All time:3,566
This week:924Up

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