PHP Classes

SecurityImage: Generate images for CAPTCHA validation

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2008-06-10 (6 years ago) RSS 2.0 feedNot yet rated by the usersTotal: 405 All time: 5,981 This week: 2,398Up
Version License PHP version Categories  
andrewsecurityimage 1.3GNU General Publi...4.0Graphics, Validation, Security
Description Author  

This class can be used to generate images for CAPTCHA validation.

It creates a random text with a limited length of letters and digits and renders it in an image using one of several possible TrueType fonts.

Several background images may be used randomly to obfuscate the text.

The class also renders random circles to also obfuscate the text.

The image is generated in PNG format as the current script output.

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  • example2
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  Files folder image Files  
File Role Description
Plain text file exampleForm.php Example An example usage form
Plain text file ProcessForm.php Example an example of processing the form
Plain text file readme.txt Doc. readmefile
Plain text file SecurityImage.php Class CAPTCHA implementation class

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