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elysdan/emcaptcha
=================

Arithmetic CAPTCHA for Laravel — generates math operation images (addition, subtraction, multiplication) with built-in validation.

v1.0.3(3mo ago)237↓63.6%MITPHPPHP ^8.1

Since Mar 11Pushed 3mo agoCompare

[ Source](https://github.com/elysdan/EMCaptcha)[ Packagist](https://packagist.org/packages/elysdan/emcaptcha)[ RSS](/packages/elysdan-emcaptcha/feed)WikiDiscussions main Synced 3w ago

READMEChangelogDependencies (5)Versions (3)Used By (0)

EMCaptcha
=========

[](#emcaptcha)

[![License: MIT](https://camo.githubusercontent.com/784362b26e4b3546254f1893e778ba64616e362bd6ac791991d2c9e880a3a64e/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4c6963656e73652d4d49542d677265656e2e737667)](LICENSE)

Paquete Laravel para generar **captchas de operaciones aritméticas** (suma, resta, multiplicación) como imágenes PNG. Compatible con **Laravel 10, 11 y 12**.

---

Características
---------------

[](#características)

- ✅ Operaciones aritméticas: suma, resta y multiplicación (solo enteros, sin decimales)
- 🖼️ Generación de imagen PNG con ruido anti-bot (líneas y puntos aleatorios)
- 🎚️ 3 niveles de dificultad configurables: `easy`, `medium`, `hard`
- 🔄 Botón de refresh integrado
- ✔️ Regla de validación lista para usar
- 🧩 Componente Blade: ``
- ⚙️ Configuración publicable
- 🔍 Auto-discovery de Laravel (sin configuración manual)

---

Requisitos
----------

[](#requisitos)

- PHP ≥ 8.1
- Laravel 10, 11 o 12
- Extensión PHP `ext-gd`

---

Instalación
-----------

[](#instalación)

```
composer require elysdan/emcaptcha
```

El paquete se registra automáticamente gracias al auto-discovery de Laravel.

### Publicar configuración (opcional)

[](#publicar-configuración-opcional)

```
php artisan vendor:publish --tag=emcaptcha-config
```

Esto crea `config/emcaptcha.php` donde puedes personalizar:

OpciónDefaultDescripción`difficulty``'medium'``easy` (1-9), `medium` (10-99), `hard` (100-999)`operations``['+', '-', '*']`Operaciones habilitadas`image.width``200`Ancho de imagen (px)`image.height``70`Alto de imagen (px)`image.bg_color``'#ffffff'`Color de fondo`image.text_color``'#333333'`Color del texto`image.noise_lines``5`Líneas de ruido`image.noise_dots``50`Puntos de ruido`session_key``'emcaptcha_answer'`Clave de sesión`expire_minutes``5`Minutos de expiración---

Uso
---

[](#uso)

### 1. En un formulario Blade

[](#1-en-un-formulario-blade)

```

    @csrf

    @error('captcha')
        {{ $message }}
    @enderror

    Enviar

```

El componente renderiza automáticamente:

- La imagen del captcha
- Un botón de refresh 🔄
- Un input numérico para la respuesta

### 2. Validación en el Controller

[](#2-validación-en-el-controller)

```
use Elysdan\EMCaptcha\Rules\ValidCaptcha;

public function store(Request $request)
{
    $request->validate([
        'captcha' => ['required', 'numeric', new ValidCaptcha],
        // ...otros campos
    ]);

    // El captcha es válido, continúa...
}
```

### 3. Uso con Facade (avanzado)

[](#3-uso-con-facade-avanzado)

```
use Elysdan\EMCaptcha\Facades\EMCaptcha;

// Crear un captcha manualmente
$captcha = EMCaptcha::createFull();
// ['expression' => '7 + 3', 'answer' => 10, 'key' => 'emcaptcha_answer']

// Validar respuesta
$isValid = EMCaptcha::check($userInput);

// Refrescar captcha
$newCaptcha = EMCaptcha::refresh();

// Obtener URL de imagen
$url = EMCaptcha::getImageUrl();
```

---

Rutas registradas
-----------------

[](#rutas-registradas)

MétodoURINombreDescripciónGET`/captcha/emcaptcha``emcaptcha.show`Retorna la imagen PNGGET`/captcha/emcaptcha/refresh``emcaptcha.refresh`Genera nuevo captcha (JSON)---

Personalización del componente Blade
------------------------------------

[](#personalización-del-componente-blade)

El componente acepta atributos opcionales:

```

```

---

Tests
-----

[](#tests)

```
composer install
./vendor/bin/phpunit
```

---

Licencia
--------

[](#licencia)

MIT. Ver [LICENSE](LICENSE).

###  Health Score

38

—

LowBetter than 83% of packages

Maintenance80

Actively maintained with recent releases

Popularity13

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity44

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~0 days

Total

2

Last Release

106d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/7619b71cd49b9d52c7cf1fb7caf30ae282e6a9bca4c70ae96ecdecf91dc0b879?d=identicon)[elysdan](/maintainers/elysdan)

---

Top Contributors

[![elysdan](https://avatars.githubusercontent.com/u/49619717?v=4)](https://github.com/elysdan "elysdan (3 commits)")

---

Tags

laravelsecuritymatharithmeticcaptcha

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/elysdan-emcaptcha/health.svg)

```
[![Health](https://phpackages.com/badges/elysdan-emcaptcha/health.svg)](https://phpackages.com/packages/elysdan-emcaptcha)
```

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