Generating Captcha in Laravel
A detailed guide on how to create a Captcha in Laravel to protect forms from spam and verify user authenticity. This tutorial will help you integrate Captcha into your Laravel project with ease.
Step 1: Install
This article demonstrates how to use the mews/captcha library to generate a Captcha in Laravel, enhancing form security by verifying user input through a protective code.
Laravel Code
Step 1: Install mews/captcha library
Run the following command:
composer require mews/captcha
Step 2: Configure the library in Laravel
- Add the service provider and alias to
config/app.php:
'providers' => [
Mews\Captcha\CaptchaServiceProvider::class,
],
'aliases' => [
'Captcha' => Mews\Captcha\Facades\Captcha::class,
],
- Publish the configuration:
php artisan vendor:publish --provider="Mews\Captcha\CaptchaServiceProvider"
Step 3: Using Captcha in your form
In web.php:
use Illuminate\Support\Facades\Route;
Route::get('form', function () {
return view('form');
});
Route::post('submit', function () {
request()->validate([
'captcha' => 'required|captcha'
]);
return 'Captcha is correct!';
});
In resources/views/form.blade.php:
<!DOCTYPE html>
<html>
<head>
<title>Captcha Form</title>
</head>
<body>
<form action="/submit" method="POST">
@csrf
<p><input type="text" name="captcha" placeholder="Enter Captcha"></p>
<p>{!! captcha_img() !!}</p>
<p><button type="submit">Submit</button></p>
</form>
</body>
</html>
Detailed explanation:
- The
mews/captchalibrary is installed to generate Captcha in Laravel. -
CaptchaServiceProviderandCaptchaalias are registered inconfig/app.php. -
captcha_img()inform.blade.phpdisplays the Captcha image. - Upon form submission,
request()->validate()checks thecaptchafield.
System Requirements:
- PHP 7.3 or newer
- Laravel 8.x or newer
- Composer
How to install the libraries needed to run the Laravel code above:
Use Composer to install the mews/captcha library:
composer require mews/captcha
Tips:
- Always use Captcha for registration or login forms to prevent spam.
- Regularly update and verify the Captcha code to maintain security.