Class: SecurityImage (random)

Name:	SecurityImage Support forum
Base name:	`andrewsecurityimage`
Description:	Generate images for CAPTCHA validation
Search tags:	random
Version:	`1.3`
Required PHP version:	`4.0`
License:	GNU General Public License (GPL)
All time users:	301 users
All time rank:	3757
Week users:	2 users
Week rank:	2333

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File Role Description

example1 Screen example1

example2 Screen example2

Groups:

Graphics	Colors, images, charts and picture formats	View top rated classes
Validation	Validation algorithms	View top rated classes
Security	Security protection and attack detection	View top rated classes

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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Files:

File	Role	Description
`exampleForm.php`	Example	An example usage form
`ProcessForm.php`	Example	an example of processing the form
`readme.txt`	Doc.	readmefile
`SecurityImage.php`	Class	CAPTCHA implementation class

Download all files: andrewsecurityimage.tar.gz andrewsecurityimage.zip

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Class: SecurityImage

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