Captcha for Laravel 5/6/7/8/9

A simple Laravel 5/6 service provider for including the Captcha for Laravel.

for Laravel 4 Captcha for Laravel Laravel 4

Preview

• Captcha for Laravel 5/6/7
  • Preview
  • Installation
  • Usage
  • Configuration
    • Custom settings:
    • Disable validation:
  • Example Usage
    • Session Mode:
    • Stateless Mode:
• Return Image
• Return URL
• Return HTML
• To use different configurations
  • Links

Installation

The Captcha Service Provider can be installed via Composer by requiring the mews/captcha package and setting the minimum-stability to dev (required for Laravel 5) in your project's composer.json.

{
    "require": {
        "laravel/framework": "5.0.*",
        "mews/captcha": "~2.0"
    },
    "minimum-stability": "stable"
}

or

Require this package with composer:

composer require mews/captcha

Update your packages with composer update or install with composer install.

In Windows, you'll need to include the GD2 DLL php_gd2.dll in php.ini. And you also need include php_fileinfo.dll and php_mbstring.dll to fit the requirements of mews/captcha's dependencies.

Usage

To use the Captcha Service Provider, you must register the provider when bootstrapping your Laravel application. There are essentially two ways to do this.

Find the providers key in config/app.php and register the Captcha Service Provider.

    'providers' => [
        // ...
        'Mews\Captcha\CaptchaServiceProvider',
    ]

for Laravel 5.1+

    'providers' => [
        // ...
        Mews\Captcha\CaptchaServiceProvider::class,
    ]

Find the aliases key in config/app.php.

    'aliases' => [
        // ...
        'Captcha' => 'Mews\Captcha\Facades\Captcha',
    ]

for Laravel 5.1+

    'aliases' => [
        // ...
        'Captcha' => Mews\Captcha\Facades\Captcha::class,
    ]

Configuration

Custom settings:

To use your own settings, publish config.

$ php artisan vendor:publish

config/captcha.php

return [
    'default'   => [
        'length'    => 5,
        'width'     => 120,
        'height'    => 36,
        'quality'   => 90,
        'math'      => true,  //Enable Math Captcha
        'expire'    => 60,    //Captcha expiration
    ],
    // ...
];

Disable validation:

To disable the captcha validation use CAPTCHA_DISABLE environment variable. e.g. .env config:

CAPTCHA_DISABLE=true

Example Usage

Session Mode:

    // [your site path]/Http/routes.php
    Route::any('captcha-test', function() {
        if (request()->getMethod() == 'POST') {
            $rules = ['captcha' => 'required|captcha'];
            $validator = validator()->make(request()->all(), $rules);
            if ($validator->fails()) {
                echo '<p style="color: #ff0000;">Incorrect!</p>';
            } else {
                echo '<p style="color: #00ff30;">Matched :)</p>';
            }
        }
    
        $form = '<form method="post" action="captcha-test">';
        $form .= '<input type="hidden" name="_token" value="' . csrf_token() . '">';
        $form .= '<p>' . captcha_img() . '</p>';
        $form .= '<p><input type="text" name="captcha"></p>';
        $form .= '<p><button type="submit" name="check">Check</button></p>';
        $form .= '</form>';
        return $form;
    });

Stateless Mode:

You get key and img from this url http://localhost/captcha/api/math and verify the captcha using this method:

    //key is the one that you got from json response
    // fix validator
    // $rules = ['captcha' => 'required|captcha_api:'. request('key')];
    $rules = ['captcha' => 'required|captcha_api:'. request('key') . ',math'];
    $validator = validator()->make(request()->all(), $rules);
    if ($validator->fails()) {
        return response()->json([
            'message' => 'invalid captcha',
        ]);

    } else {
        //do the job
    }

Return Image

captcha();

or

Captcha::create();

Return URL

captcha_src();

or

Captcha::src('default');

Return HTML

captcha_img();

or

Captcha::img();

To use different configurations

captcha_img('flat');

Captcha::img('inverse');

etc.

Based on Intervention Image

^_^

Links

• Intervention Image
• L5 Captcha on Github
• L5 Captcha on Packagist
• For L4 on Github
• License
• Laravel website
• Laravel Turkiye website
• MeWebStudio website