README

CodeIgniter 4 reCAPTCHA

CodeIgniter 4 verifier for Google reCAPTCHA v2 and reCAPTCHA v3.

Requirements

• PHP >= 7.4
• Composer

Features

• PSR-4 autoloading compliant structure
• PSR-2 compliant code style
• Useful tools for better code included

Installation

Install the package with:

composer require sooluh/codeigniter4-recaptcha

Configuration

Add your reCAPTCHA keys to the .env file.

# --------------------------------------------------------------------
# ReCaptcha 2
# --------------------------------------------------------------------
recaptcha2.key = 'XXXXXXXX-XXXXXXXX'
recaptcha2.secret = 'XXXXXXXX-XXXXXXXX'

# --------------------------------------------------------------------
# ReCaptcha 3
# --------------------------------------------------------------------
recaptcha3.key = 'XXXXXXXX-XXXXXXXX'
recaptcha3.secret = 'XXXXXXXX-XXXXXXXX'
recaptcha3.scoreThreshold = 0.5

In the /app/Config/Validation.php file, you need to add settings for the validator.

public $ruleSets = [
    ...
    \ReCaptcha\Validation\ReCaptchaRules::class
];

Usage

Rendering reCAPTCHA v2

helper(['form', 'reCaptcha']);

echo form_open();

echo reCaptcha2('reCaptcha2', ['id' => 'recaptcha_v2'], ['theme' => 'dark']);

echo form_submit('submit', 'Submit');

echo form_close();

Rendering reCAPTCHA v3

helper(['form', 'reCaptcha']);

echo form_open();

echo reCaptcha3('reCaptcha3', ['id' => 'recaptcha_v3'], ['action' => 'contactForm']);

echo form_submit('submit', 'Submit');

echo form_close();

Validation

public $validationRules = [
    'reCaptcha2' => 'required|reCaptcha2[]',
    'reCaptcha3' => 'required|reCaptcha3[contactForm,0.9]'
    ....
];

In the settings of the reCaptcha3 validator, the first parameter you specify is expectedAction, this parameter is not required.
You can override a global scoreThreshold parameter in the second reCaptcha3 rule parameter.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgements

This project is built upon the foundation of codeigniter4-recaptcha repository created by denis303. The decision to use this basecode was motivated by its robust architecture and existing functionalities.

Note

Please note that the original repository might not have been active for the past 2 years and the original developer's GitHub profile indicates limited recent activity.

Disclaimer

This project has been modified to address certain issues and to suit the requirements of this project.