PHP Classes

GD Image Verification Class: Generate CAPTCHA verification images for forms

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2005-12-15 (9 years ago) RSS 2.0 feedStarStar 36%Total: 2,043 All time: 1,829 This week: 1,134Up
Version License Categories  
gd_verification 1.0.0GNU General Publi...Graphics, Validation
Description Author  

This class can be used to perform CAPTCHA tests to verify whether a site user is a real human or a robot script.

It generates images with random secret texts. The secret texts are stored on the server side using session variables.

The images are drawn with the GD library and outputted in the JPEG format.

The class also provides a verification function to determine whether the text in the image matches the text eventually entered by an user in a verification form.

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  Files folder image Files  
File Role Description
Plain text file gd_image_verify.php Class Class file
Accessible without login Plain text file gd_image.php Example Example file #1
Accessible without login Plain text file gd_example.php Example Example file #2
Accessible without login Plain text file gd_doc.txt Doc. Documentation

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Example does not show image.
7 years ago (Ivan Lim)