PHP Classes

Math CAPTCHA Class: CAPTCHA validation using math operations

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Not enough user ratingsTotal: 989 All time: 3,671 This week: 189Up
Version License PHP version Categories
math_captcha 1.0GNU General Publi...5.0PHP 5, Graphics, Validation, Security
Description 

Author

nickolas whiting

This class can be used to perform CAPTCHA validation using math operations.

It can generate an image that displays a simple mathematical operation between two random integer numbers.

Currently the class supports the addition, subtraction and multiplication operations.

The user needs to enter the result of the math operation to pass the validation.

The class stores the validation numbers in session variables for later verification.

Picture of nickolas whiting
Name: nickolas whiting <contact>
Classes: 2 packages by
Country: United States United States
Age: 35
All time rank: 1964275 in United States United States
Week rank: 578 Up70 in United States United States Up

Screenshots  
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  Files folder image Files  
File Role Description
Plain text file captcha.php Class Captcha Class
Plain text file captcha_config.php Conf. Configuration File
Plain text file captcha_image.php Class Captcha Image Generator
Plain text file index.php Example Example Index
Plain text file legal_notice.txt Lic. Legal License
Plain text file test.php Example Test File

Downloadmath_captcha-2008-08-23.zip 22KB
Downloadmath_captcha-2008-08-23.tar.gz
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All time:3,671
This week:189Up
User Comments (1)
Nice idea and good code.
14 years ago (David Ferreira)		67%StarStarStarStar
 

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