Laravel 11 Form Validation Example

Laravel 11 form validation example; Through this tutorial, i am going to show you how to validate and store form data in Laravel 11 applications.

How to Validate Form Data in Laravel 11

Follow the below given steps to create form and validate form data before save to database in Laravel 11 applications:

• Step 1 – Install Laravel 11 Application
• Step 2 – Configuring Database using Env File
• Step 3 – Create Model & Migration File For Form
• Step 4 – Create Routes
• Step 5 – Creating Controller
• Step 6 – Create Blade File For Form
• Step 7 – Start Development Server
• Step 8 – Run Laravel 11 Form Validation App On Browser

Step 1 – Install Laravel 11 Application

In step 1, open your terminal and navigate to your local web server directory using the following command:

//for windows user
cd xampp/htdocs

//for ubuntu user
cd var/www/html

Then install laravel latest application using the following command:

composer create-project --prefer-dist laravel/laravel LaravelFormValidation

Step 2 – Configuring Database using Env File

In step 2, open your downloaded laravel app into any text editor. Then find .env file and configure database detail like following:

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=db name
DB_USERNAME=db user name
DB_PASSWORD=db password

Step 3 – Create Model & Migration File For Form

In step 3, open command prompt and navigate to your project by using the following command:

cd / LaravelFormValidation

Then create model and migration file by using the following command:

php artisan make:model Post -m

The above command will create two files into your laravel form validation application, which is located inside the following locations:

• LaravelForm/app/Models/Post.php
• LaravelForm/database/migrations/create_posts_table.php

So, find create_posts_table.php file inside LaravelForm/database/migrations/ directory. Then open this file and add the following code into function up() on this file:

    public function up()
    {
        Schema::create('posts', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->text('description');
            $table->timestamps();
        });
    }

Now, open again your terminal and type the following command on cmd to create tables into your selected database:

php artisan migrate

Step 4 – Create Routes

In step 4, open your web.php file, which is located inside routes directory. Then add the following routes into web.php file:

<?php

use Illuminate\Support\Facades\Route;
use App\Http\Controllers\PostController;


/*
|--------------------------------------------------------------------------
| 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('/', function () {
    return view('welcome');
});

Route::get('form', [PostController::class, 'index']);
Route::post('store-form', [PostController::class, 'store']);

Step 5 – Creating Controller

In step 5, create form controller by using the following command:

php artisan make:controller PostController

The above command will create PostController.php file, which is located inside LaravelForm/app/Http/Controllers/ directory.

The following laravel validation rules will validate form data before store into database in laravel:

        $validatedData = $request->validate([
          'title' => 'required|unique:posts|max:255',
          'description' => 'required',
        ]);

So open PostController.php file and add the following code into it:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Post;


class PostController extends Controller
{
    public function index()
    {
        return view('form');
    }

    public function store(Request $request)
    {
        
        $validatedData = $request->validate([
          'title' => 'required|unique:posts|max:255',
          'description' => 'required',
        ]);

        $post = new Post;

        $post->title = $request->title;
        $post->description = $request->description;

        $post->save();

        return redirect('form')->with('status', 'Blog Post Form Data Has Been inserted');

    }
}

Step 6 – Create Blade File For Form

In step 6, create new blade view file that named add-blog-post-form.blade.php inside resources/views directory for add blog post form.

The following code display error message in laravel forms. So do not forget to add the following code along laravel forms fields:

          @error('title')
              <div class="alert alert-danger mt-1 mb-1">{{ $message }}</div>
          @enderror

Don’t worry i have already added the validation error message display code along with each form fields.

So, you can add the following php and html form code into add-blog-post-form.blade.php:

<!DOCTYPE html>
<html>
<head>
	<title>How to Validate Form Data in Laravel 11</title>
	<meta name="csrf-token" content="{{ csrf_token() }}">

	<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">

</head>
<body>

<div class="container mt-4">

  @if(session('status'))
    <div class="alert alert-success">
        {{ session('status') }}
    </div>
  @endif

  <div class="card">
    <div class="card-header text-center font-weight-bold">
      <h2>Laravel 11 Form Validation Example Tutorial</h2>
    </div>
    <div class="card-body">
      <form name="add-blog-post-form" id="form" method="post" action="{{url('store-form')}}">
       @csrf

        <div class="form-group">
          <label for="exampleInputEmail1">Title</label>
          <input type="text" id="title" name="title" class="@error('title') is-invalid @enderror form-control">
          @error('title')
              <div class="alert alert-danger mt-1 mb-1">{{ $message }}</div>
          @enderror
        </div>

        <div class="form-group">
          <label for="exampleInputEmail1">Description</label>
          <textarea name="description" class="@error('title') is-invalid @enderror form-control"></textarea>
          @error('title')
              <div class="alert alert-danger mt-1 mb-1">{{ $message }}</div>
          @enderror
        </div>

        <button type="submit" class="btn btn-primary">Submit</button>
      </form>
    </div>
  </div>
</div>	
</body>
</html>

Step 7 – Start Development Server

Finally, open your command prompt again and run the following command to start development server for your laravel 8 form application:

php artisan serve

Step 8 – Run Laravel 11 Form Validation App On Browser

In step 8, open your browser and fire the following url into your browser:

http://127.0.0.1:8000/form

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