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Example code of elioair/chesscaptcha

Informations about the package chesscaptcha

Chess Captcha

Requirements: php >= 5.4, jquery > 1.8 | Latest Version 2.0.2

This is a captcha system where the user either recreates the position of the pieces on the board - non chess savvy users - or she solves a mate-in-one puzzle by putting the piece on the square where it gives the checkmate - chess savvy users only. There is also a no js fallback that exists mostly as a placeholder for future iterations; don't use it. Chesscaptcha was built for fun, it is a work in progress so feel free to make pull requests and contribute!

View demo here.

:books: Laravel + Chesscaptcha Tutorial here.

:books: Chess captcha + Emojis here.

Created by @elioair | twitter: @elioair

Libraries used:

Implementation:

Through Composer

After composer finishes importing the package:

Directly cloning the repo

Clone the repository and see immediately how it works by going to the /examples folder. You might need to require_once the files of the classes involved in the class files in the src/ChessCaptcha folder.

Quick tip: run composer install and then composer dump-autoload --optimize and include the loader.

Working Example: /examples/chesscaptcha-example.php

The php configuration

The HTML

The javascript + js options object

Add this at the end and configure it if you want ajax validation

Validation

Grab the chesscaptchaposition from the POST request and feed it into the validation method. $validate = \ChessCaptcha\ChessCaptcha::validate($inputFen, $noJs, $colorTolerance); see the src/chesscaptchavalidate.php file for more.

Further Configuration:

Look into the boardimagecreator.php for settings on the image.

Issues

TODO

FAQ

1. How do I change the positions displayed?

Edit the array $givenFen in src/fengenerator.php for the simple mode and the $givenMateInOne for the mate mode.

2. Pieces are not showing up or no board image is shown.

Make sure that you have the paths to the image files of the pieces right. E.g. $pieceImageDir property in boardimagecreator.php and $config['$pieceImageDir'].

3. How do I make the check ignore the piece color?

Pass true as the third argument of the Chesscaptcha::validate method to make the comparison color agnostic.

License

Distributed under the MIT license

All versions of chesscaptcha with dependencies

PHP Build Version
Package Version
Requires php Version >=5.4
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