Jul 25, 2016 | laravel, laravel 5.3

Image dimension validation rules in Laravel 5.3

This is a series of posts on New Features in Laravel 5.3.

!
Warning: This post is over a year old. I don't always update old posts with new information, so some of this information may be out of date.

In Laravel 5.3, we have a new validation option: image dimensions for image uploads. The validation rule is called dimensions, and you can pass the following parameters to it:

min_width: Images narrower than this pixel width will be rejected
max_width: Images wider than this pixel width will be rejected
min_height: Images shorter than this pixel height will be rejected
max_height: Images taller than this pixel height will be rejected
width: Images not exactly this pixel width will be rejected
height: Images not exactly this pixel height will be rejected
ratio: Images not exactly this ratio (width/height, expressed as "width/height") will be rejected

You can combine any rules that make sense together. Let's take a look at a few examples. First, let's set up our base install.

// routes file
Route::get('/', function () {
    return view('form');
});

Route::post('/', 'ImageController@postImage');

<!--form.blade.php-->
<form method="POST" enctype="multipart/form-data">
    <input type="file" name="avatar">
    <input type="submit">
</form>

Now, let's make our ImageController and take a look at a few sample validations.

// ImageController
    public function postImage(Request $request)
    {
        $this->validate($request, [
             'avatar' => 'dimensions:min_width=250,min_height=500'
        ]);

        // or... 

        $this->validate($request, [
             'avatar' => 'dimensions:min_width=500,max_width=1500'
        ]);

        // or...

        $this->validate($request, [
             'avatar' => 'dimensions:width=100,height=100'
        ]);

        // or...

        // Ensures that the width of the image is 1.5x the height
        $this->validate($request, [
             'avatar' => 'dimensions:ratio=3/2'
        ]);
    }

That's it! One less thing you have to manage yourself in your own code.

Comments? I'm @stauffermatt on Twitter

Tags: laravel • laravel 5.3

This is part of a series of posts on New Features in Laravel 5.3:

Introducing Laravel Echo: An In-Depth Walk-Through

Jun 16, 2016 | laravel, laravel 5.3, echo, websockets
The new $loop variable in Laravel 5.3

Jun 27, 2016 | laravel, laravel 5.3
Customizing additional parameters in FirstOrCreate in Laravel 5.3

Jun 29, 2016 | laravel, laravel 5.3, eloquent
The new cache() global helper in Laravel 5.3

Jul 6, 2016 | laravel, laravel 5.3
Advanced operations with Collection::where in Laravel 5.3

Jul 8, 2016 | laravel, laravel 5.3
New JSON-column where() and update() syntax in Laravel 5.3

Jul 8, 2016 | laravel, laravel 5.3, eloquent
Image dimension validation rules in Laravel 5.3

Jul 25, 2016 | laravel, laravel 5.3
Customizing pagination templates in Laravel 5.3

Jul 26, 2016 | laravel, laravel 5.3
Routing changes in Laravel 5.3

Jul 27, 2016 | laravel, laravel 5.3, routing
5.3 feature announcement notes from Laracon

Jul 27, 2016 | laravel, laravel 5.3, laravel scout, laravel passport, mailable
Introducing Laravel Scout

Jul 29, 2016 | laravel, laravel 5.3, laravel scout
Introducing Laravel Passport

Jul 30, 2016 | laravel, laravel 5.3, laravel passport, oauth
Introducing Mailables in Laravel 5.3

Aug 5, 2016 | laravel, laravel 5.3, mail, laravel mailables
Directory structure changes in Laravel 5.3

Aug 8, 2016 | laravel, laravel 5.3
The new Notification system in Laravel 5.3

Oct 19, 2016 | laravel, laravel 5.3, laravel notifications, notifications
Using Vue in Laravel 5.3, with the Vue bootstrap and sample component

Dec 21, 2016 | laravel, laravel 5.3, vuejs, vueify, authorization
Update to queue workers in Laravel 5.3

Dec 21, 2016 | laravel, laravel 5.3, queues
Defining console commands via closure in Laravel 5.3

Jan 30, 2017 | laravel, laravel 5.3, artisan

Image dimension validation rules in Laravel 5.3

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