Extension:VisualMathCaptcha

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VisualMathCaptcha Release status: stable
Implementation	Special page
Description	Visual (image) and math captcha
Author(s)	CchantepTalk
Last Version	1.0-SNAPSHOT
MediaWiki	1.11.x, 1.12.x, 1.13.x
License	No license specified
Download	here
Example	example 1, example 2
Parameters $wgVisualMathCaptchaItemMax, $wgVisualMathCaptchaItemNum, $wgVisualMathCaptchaOperators
check usage (experimental)

[edit] What can this extension do?

This extension allow to integrate a strong captcha with a math operation generated as image.

[edit] Usage

[edit] Download instructions

You can download VisualMathExtension from there.

[edit] Installation

To install this extension, add the following to LocalSettings.php:

require_once( "$IP/extensions/VisualMathCaptcha/VisualMathCaptcha.setup.php" );

This extension requires you have GD module for PHP.

[edit] Configuration parameters

• $wgVisualMathCaptchaItemMax : [int] max value (included) for each number in operation ; Defaulted to 9.

• $wgVisualMathCaptchaItemNum : [int] count of number in generated operator; Defaulted to 2.

• $wgVisualMathCaptchaOperators : [array] operators allowed for generation; Defaulted to { '+', '-' }.

[edit] See also

[edit] CorporateContact

VisualMathCaptcha can be used with CorporateContact.

[edit] ConfirmEdit

This captcha can be used instead of standard captcha of ConfirmEdit extension. To do so :

1. Open ConfirmEdit.php, in ConfirmEdit extension directory, and change $wgCaptchaClass value to VisualMathConfirmCaptcha.
2. Add following line in LocalSettings.php, after content copied from provided file LocalSettings.part :

  $wgAutoloadClasses['VisualMathConfirmCaptcha'] = "$IP/extensions/VisualMathCaptcha/VisualMathConfirmCaptcha.class.php";