CAPTCHA X: Image based CAPTCHA validation

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Version License Categories
captcha_x 1.0.0GNU General Publi...Graphics, Validation, Security
Description Author

This class can be used to perform CAPTCHA validation of human users.

It generates an image with a random text rendered in a fuzzy way to make it difficult to guess by robots.

The configuration details are read from an file in the ini format.

Several types of options can be configured like the text fonts, letters, colors and the noise level of the generated image.

The verification image is generated in the JPEG format.

The class stores an MD5 hash of the verification text in a session variable.

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Details
The CAPTCHA X package contains these files

class.captcha_x.php      Main file. Contains documentation on class methods
captcha_x.ini            Configuration. Contains documentation on parameters
server.php               Sample CAPTCHA image server
index.php                Sample validation form
fonts/                   Directory for local fonts
fonts/PLACEHOLDER
README.txt               this file
  Files folder image Files  
File Role Description
Files folder imagefonts (1 file)
Plain text file class.captcha_x.php Class Main file. Contains documentation on class methods
Accessible without login Plain text file captcha_x.ini Data Configuration. Contains documentation on parameters
Accessible without login Plain text file server.php Example Sample CAPTCHA image server
Accessible without login Plain text file index.php Example Sample validation form
Accessible without login Plain text file README.txt Doc. Readme
Accessible without login Image file sample01.jpg Output Sample CAPTCHA image

  Files folder image Files  /  fonts  
File Role Description
  Accessible without login Plain text file PLACEHOLDER Data Just a placehoder for the user fonts directory

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