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Example code of mrtolouei/laravel-math-captcha

Informations about the package laravel-math-captcha

Laravel Math CAPTCHA

Tests Latest Stable Version

A stateless, lightweight math-based CAPTCHA package for Laravel that generates a simple arithmetic challenge as an image and verifies it via signed payloads.
No database, cache, or filesystem is required.

Table of contents

  1. Features
  2. Requirements
  3. Installation
  4. Configuration
  5. Usage
  6. Example Controller
  7. Testing
  8. Advanced Usage
  9. Security Notes
  10. Contributions

  11. License

    Features

    • Stateless: no DB, cache, or filesystem dependency.
    • Uses Laravel APP_KEY for secure HMAC signing.
    • Configurable math range and image appearance.
    • Simple one-time-use CAPTCHA (answer embedded in signed hash).
    • Ready for Laravel 10+.
    • Fully testable with PHPUnit.

Requirements

Installation

Install via Composer:

Publish configuration file:

This will create:

Configuration

config/captcha.php contains two main sections:

Image

Math Expression

Usage

Generating a CAPTCHA

Display in Blade

Verifying CAPTCHA

⚠ Note: This CAPTCHA is stateless, so there is no anti-replay mechanism. Each CAPTCHA is single-use in logic only; after verification, the hash can be reused unless you implement additional storage/cache.

Example Controller

Testing

This package uses PHPUnit 10 and Orchestra Testbench for Laravel integration.

Run tests:

Unit Tests Covered

Advanced Usage

Security Notes

Contributions

PRs, issues, stars are welcome!

License

This package is open-sourced software licensed under the MIT license.

All versions of laravel-math-captcha with dependencies

PHP Build Version
Package Version
Requires php Version ^8.1
illuminate/support Version ^10.0|^11.0
illuminate/cache Version ^10.0|^11.0
ext-gd Version *
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