Laravel 10 Image Validation Rule Example

Hello Guys,

As of my knowledge cutoff in September 2021, Laravel 10 was the latest version available. However, I can provide you with an example of how to validate an image in Laravel 10 using the built-in validation rules. The code should be similar in Laravel 10 if it follows the same conventions.

To validate an uploaded image, you can make use of the image validation rule and specify additional constraints such as the maximum file size, allowed file formats, and image dimensions. Here's an example of how you can define an image validation rule in Laravel 10:

Step 1: Install Laravel 10 App

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 a new ImageController; in this file, we will add two method index() and store() for render view and store image logic.

Let's create ImageController by following command:

php artisan make:controller ImageController

next, let's update the following code to Controller File.

app/Http/Controllers/ImageController.php

<?php
  
namespace App\Http\Controllers;
  
use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
  
class ImageController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(): View
    {
        return view('imageUpload');
    }
        
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request): RedirectResponse
    {
        $this->validate($request, [
            'image' => ['required',
                        'image',
                        'mimes:jpg,png,jpeg,gif,svg',
                        'dimensions:min_width=100,min_height=100,max_width=1000,max_height=1000',
                        'max:2048'],
        ]);
        
        $imageName = time().'.'.$request->image->extension();  
         
        $request->image->move(public_path('images'), $imageName);
      
        /* 
            Write Code Here for
            Store $imageName name in DATABASE from HERE 
        */
        
        return back()
                    ->with('success', 'You have successfully upload image.')
                    ->with('image', $imageName); 
    }
}

Step 3: Create and Add Routes

Furthermore, open routes/web.php file and add the routes to manage GET and POST requests for render view and store image logic.

routes/web.php

<?php
  
use Illuminate\Support\Facades\Route;
  
use App\Http\Controllers\ImageController;
  
/* 
|--------------------------------------------------------------------------
| 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::controller(ImageController::class)->group(function(){
    Route::get('image-upload', 'index');
    Route::post('image-upload', 'store')->name('image.store');
});

Step 4: Create Blade File

At last step we need to create imageUpload.blade.php file and in this file we will create form with file input button. So copy bellow and put on that file.

resources/views/imageUpload.blade.php

<!DOCTYPE html>
<html>
<head>
    <title>Laravel 10 Image Upload Example - webthestuff.com</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
      
<body>
<div class="container">
       
    <div class="panel panel-primary">
  
      <div class="panel-heading">
        <h2>Laravel 10 Image Upload Example - webthestuff.com</h2>
      </div>
 
      <div class="panel-body">
       
        @if ($message = Session::get('success'))
        <div class="alert alert-success alert-block">
            <button type="button" class="close" data-dismiss="alert">×</button>
                <strong>{{ $message }}</strong>
        </div>
        <img src="images/{{ Session::get('image') }}">
        @endif
      
        <form action="{{ route('image.store') }}" method="POST" enctype="multipart/form-data">
            @csrf
  
            <div class="mb-3">
                <label class="form-label" for="inputImage">Image:</label>
                <input 
                    type="file" 
                    name="image" 
                    id="inputImage"
                    class="form-control @error('image') is-invalid @enderror">
  
                @error('image')
                    <span class="text-danger">{{ $message }}</span>
                @enderror
            </div>
   
            <div class="mb-3">
                <button type="submit" class="btn btn-success">Upload</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 serve

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

http://localhost:8000/image-upload