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PHP Math Captcha: Generate CAPTCHA images with math operations

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Last Updated Ratings Unique User Downloads Download Rankings
2013-12-11 (2 years ago) RSS 2.0 feedNot yet rated by the usersTotal: 257 All time: 7,330 This week: 963Up
Version License PHP version Categories
php-math-captcha 1.0.0Free For Educatio...5.0Graphics, Validation, Math, Security
Description Author

This class can generate CAPTCHA images with math operations.

It can generate a random math expression with an operation between two numbers, like addition, subtraction and multiplication and render it in a image for CAPTCHA validation.

The class can validate the math expression result entered by the user in a form by comparing with the numbers and the operator stored previously in session variables.

Picture of Peeyush Budhia
  Performance   Level  
Name: Peeyush Budhia <contact>
Classes: 4 packages by
Country: India India

Screenshots  
  • MathsCaptcha.PNG
  Files folder image Files  
File Role Description
Plain text file class.MathsCaptcha.php Class Class File
Accessible without login Plain text file getCaptcha.php Example File used to generate image
Accessible without login Plain text file index.php Aux. Index File
Accessible without login Plain text file validate.php Example File is used to validate captcha image.

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Total:257
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All time:7,330
This week:963Up
User Comments (1)
Ultimate!
2 years ago (Vikram Prabhakar)
70%StarStarStarStar