Laravel 9 Form Validation Tutorial Example

Hi Dev,

In this article, we will cover how to implement laravel 9 form validation tutorial. you’ll learn laravel 9 form validation with an error message. This article goes into detail on form validation laravel 9. we will help you to give examples of simple form validation in laravel 9. follow the below step for laravel 9 form validation custom error messages.

Laravel 9 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 9 application.

so, let’s see the below example for adding form validation.

Laravel 9 Form Validation Tutorial Example

Step 1: Install Laravel 9

This step is not required; however, if you have not created the laravel app, then you may go ahead and execute the below command:

composer create-project laravel/laravel example-app

Step 2: Create Controller

In this step, we will create new FormController for adding form validation. in this controller we will add two method call create() and store(). so let’s create new controller by following command.

php artisan make:controller FormController

Next, let’s update the following code to that file.

app/Http/Controllers/FormController.php

<?php

namespace AppHttpControllers;

use IlluminateHttpRequest;

use AppModelsUser;

class FormController extends Controller

{

/**

* Show the application dashboard.

*

* @return IlluminateHttpResponse

*/

public function create()

{

return view('createUser');

}

/**

* Show the application dashboard.

*

* @return IlluminateHttpResponse

*/

public function store(Request $request)

{

$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 call view and adding form validation.

routes/web.php

<?php

use IlluminateSupportFacadesRoute;

use AppHttpControllersFormController;

/*

|--------------------------------------------------------------------------

| Web Routes

|--------------------------------------------------------------------------

|

| Here is where you can register web routes for your application. These

| routes are loaded by the RouteServiceProvider within a group which

| contains the "web" middleware group. Now create something great!

|

*/

Route::get('user/create', [ FormController::class, 'create' ]);

Route::post('user/create', [ FormController::class, 'store' ]);

Step 4: Create Blade File

now here we will create createUser.blade.php file and here we will create bootstrap simple form with error validation message. So, let’s create following file:

resources/views/createUser.blade.php

<!DOCTYPE html>

<html>

<head>

<title>Laravel 9 Form Validation Example - ItSolutionStuff.com</title>

<meta charset="utf-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<meta name="viewport" content="width=device-width, initial-scale=1">

<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

<h1>Laravel 9 Form Validation Example - ItSolutionStuff.com</h1>

@if(Session::has('success'))

<div class="alert alert-success">

{{ Session::get('success') }}

@php

Session::forget('success');

@endphp

</div>

@endif

<!-- 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="{{ url('user/create') }}">

{{ 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">Submit</button>

</div>

</form>

</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 serve

Now, Go to your web browser, type the given URL and view the app output:

http://localhost:8000/user/create

Output:

Laravel 9 Form Validation Tutorial Example

I hope it can help you…

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