In this example, I will show you how to add form validation in laravel 12 application.
Laravel 12 provides a request object to add form validation using it. We will use request->validate() for adding validation rules and custom messages. We will use the $errors variable to display error messages. I will show you a very simple step-by-step example of how to add form validation in the Laravel 12 application. You Can Learn How to generate pdf file in laravel 12 using dompdf Example
So, let’s see the example below for adding form validation.
How to add form validation in laravel 12 Example
Step 1: Install Laravel 12
This step is not required; however, if you have not created the Laravel app, then you may go ahead and execute the below command:
laravel new example-appStep 2: Create Controller
In this step, we will create a new `FormController` for adding form validation. In this controller, we will add two methods called `create()` and `store()`. So let’s create a new controller using the following command.
php artisan make:controller FormControllerNext, let’s update the following code in that file.
app/Http/Controllers/FormController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\User;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
class FormController extends Controller
{
/**
* Show the application dashboard.
*
* @return \Illuminate\Http\Response
*/
public function create(): View
{
return view('createUser');
}
/**
* Show the application dashboard.
*
* @return \Illuminate\Http\Response
*/
public function store(Request $request): RedirectResponse
{
$validatedData = $request->validate([
'name' => 'required',
'password' => 'required|min:5',
'email' => 'required|email|unique:users'
], [
'name.required' => 'Name field is required.',
'password.required' => 'Password field is required.',
'email.required' => 'Email field is required.',
'email.email' => 'Email field must be email address.'
]);
$validatedData['password'] = bcrypt($validatedData['password']);
$user = User::create($validatedData);
return back()->with('success', 'User created successfully.');
}
}Step 3: Create Routes
Furthermore, open `routes/web.php` file and add the routes to manage GET and POST requests for calling views and adding form validation.
routes/web.php
<?php
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\FormController;
Route::get('users/create', [ FormController::class, 'create' ]);
Route::post('users/create', [ FormController::class, 'store' ])->name('users.store');
Step 4: Create Blade File
Now, here we will create createUser.blade.php file and here we will create a bootstrap simple form with error validation messages. So, let’s create the following file:
resources/views/createUser.blade.php
<!DOCTYPE html>
<html>
<head>
<title>Laravel 12 Form Validation Example - DevScriptSchool.com</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css" />
</head>
<body>
<div class="container">
<div class="card mt-5">
<h3 class="card-header p-3"><i class="fa fa-star"></i> Laravel 12 Form Validation Example - DevScriptSchool.com</h3>
<div class="card-body">
@session('success')
<div class="alert alert-success" role="alert">
{{ $value }}
</div>
@endsession
<!-- Way 1: Display All Error Messages -->
@if ($errors->any())
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<form method="POST" action="{{ route('users.store') }}">
{{ csrf_field() }}
<div class="mb-3">
<label class="form-label" for="inputName">Name:</label>
<input
type="text"
name="name"
id="inputName"
class="form-control @error('name') is-invalid @enderror"
placeholder="Name">
<!-- Way 2: Display Error Message -->
@error('name')
<span class="text-danger">{{ $message }}</span>
@enderror
</div>
<div class="mb-3">
<label class="form-label" for="inputPassword">Password:</label>
<input
type="password"
name="password"
id="inputPassword"
class="form-control @error('password') is-invalid @enderror"
placeholder="Password">
<!-- Way 3: Display Error Message -->
@if ($errors->has('password'))
<span class="text-danger">{{ $errors->first('password') }}</span>
@endif
</div>
<div class="mb-3">
<label class="form-label" for="inputEmail">Email:</label>
<input
type="text"
name="email"
id="inputEmail"
class="form-control @error('email') is-invalid @enderror"
placeholder="Email">
@error('email')
<span class="text-danger">{{ $message }}</span>
@endif
</div>
<div class="mb-3">
<button class="btn btn-success btn-submit"><i class="fa fa-save"></i> Submit</button>
</div>
</form>
</div>
</div>
</div>
</body>
</html>
Run Laravel App:
All the required steps have been done, now you have to type the given below command and hit enter to run the Laravel app:
php artisan serveNow, Go to your web browser, type the given URL and view the app output:
http://localhost:8000/users/create
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