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Informations about the package yii2-captcha-extended
Yii2 Captcha Extended
Yii2 Captcha Extended is an extension written for Yii2 framework. It enhances original captcha code delivered along with the framework - see DEMO. Version for Yii 1.x is available at Yii Framework Extensions.
Features
- supports modes: default, math, mathverbal, words, logical
- supports extended characters latin1, latin2 (utf-8) including middle- east- european and cyrillyc characters
- adds visual obfuscation elements: dots density, through lines, fillSections, random text & background color
- mode-dependent options: randomUpperLowerCase (default mode), resultMultiplier (math mode)
INSTALLATION
1) Install via composer:
or you can include the following in your composer.json file:
2) Define action in controller, e.g. SiteController:
3) Define client validation in LoginForm::rules():
4) In view defined captcha field inside login form e.g.:
5) If needed, collect localized strings via CLI command yiic message messages/config.php and translate captcha related strings.
6) Since by default capchta configures to default framework's settings, you may want to adjust some options:
* `mode` - default|math|mathverbal|logical|words,
* for the `words` mode, you can replace your own file [words.txt] or [words.yourlanguage.txt]
* `density` - dots density [0-100],
* `lines` - the number of through lines [0-20],
* `fillSections` - the number of fillSections [0-20],
* `letters` - define your own first characters set (UTF-8 supported)
* `vowels` - define your own second characters set (UTF-8 supported)
* `resultMultiplier` - applied to math mode to increase formula difficulty
* `fileWords` - abs. path to file with your own defined locale words (UTF-8 supported)
* `randomUpperLowerCase` - mix up randomly upper & lower characters from characters sets
* `paramRefreshUrl` - set your own URL refresh param, defaults to `v`
* also note standard properties supported by framework: `width`, `height`, `padding`, `offset`, `foreColor`, `backColor`, `transparent`, `minLength`, `maxLength`, ..7) Enjoy! :-)
Changelog
Version 1.0.5 - Nov 7, 2023
- PHP 8.2+ compatability
- enable unicode in REGEX by default (/u modifier)
Version 1.0.4 - Jun 30, 2021
- updated SK, CS words (dropped accented characters)
Version 1.0.3 - Jun 07, 2020
- minor compatability fix for PHP 7.4+
Version 1.0.2 - Feb 25, 2020
- configurable refresh parameter in URL
- updated docs
Version 1.0.1 - May 21, 2018
- added CS (Czech) words file
- center formula horizontaly
- updated documentation
Version 1.0.0 - March 28, 2018
- rework of previous extension for Yii 1.x branch
- added new options - custom character sets, resultMultiplier, randomUpperLowerCase, Imagick support
- couple of potential bugfixes e.g. calculating pixel color ranges
- full multibyte (MB) support
- added support for installation via composer
All versions of yii2-captcha-extended with dependencies
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