Laravel 5.2 TokenMismatchException - laravel

Question

I'd like to write a code in Laravel 5.2 which would upload photos, my problem is that once I start uploading many photos at once the site goes down.
It gives me this error: TokenMismatchException in VerifyCsrfToken.php line 67:
This error should appear only when the {{ csrf_field() }}, is missing from the form, but in this case it isn't, it's right there.
It works perfectly with less images. What could be the problem?
Controller
public function store(Request $request)
{
$rules = array(
'picturess' => 'mimes:jpeg,jpg,bmp,png',
);
$messages = array(
'mimes' => 'A feltöltetni kívánt kép nem felel meg a kritériumoknak. (Ilyen lehet a kép kiterjesztése: jpeg, jpg, bmp vagy png. A kép se lehet bármekkora.)',
'integer' => 'A beírt szőveg nem szám.',
'required' => 'Ennek a mezőnek a kitőltése kötelező.',
);
$validator = Validator::make(Input::all(), $rules, $messages);
if ($validator->fails()) {
$messages = $validator->messages();
return Redirect::back()->withInput()->withErrors($validator);
}
if (Input::hasFile('pictures')) {
$files = $request::file('pictures');
$file_count = count($files);
$uploadcount = 0;
$destinationPath = 'uploads';
$userId = Auth::user()->id;
foreach ($files as $file) {
if ($file->isValid()) {
$extension = $file->getClientOriginalExtension();
$pictureFileName = $this->makePictureFileName(0, $extension);
$thumbnailPictureFileName = $this->makePictureFileName(1, $extension);
Log::info('pictureFileName: '.$pictureFileName);
if ($file->move($destinationPath, $pictureFileName)) {
$uploadcount++;
$img = Image::make($destinationPath . '/' . $pictureFileName);
//$img = Image::make($file->getClientOriginalName());
$img->resize(277, null, function ($constraint) {
$constraint->aspectRatio();
});
$img->save($destinationPath . '/' . $thumbnailPictureFileName);
$picture = new Picture;
$picture->filename = $pictureFileName;
$picture->thumbnail_filename = $thumbnailPictureFileName;
$picture->user_id = $userId;
$picture->save();
}
} else {
Session::flash('picture-error', 'A feltöltetni kívánt kép nem megfelelő. (Valószínűleg túl nagy.)');
return redirect()->back()->withInput()->withErrors($validator);
}
}
if ($uploadcount == $file_count) {
Session::flash('success', 'A képek feltöltése sikeres.');
} else {
return redirect()->back()->withInput()->withErrors($validator);
}
}
//return Redirect::to('pictures/create');
return redirect()->back()->withInput()->withErrors($validator);
}
View
#extends('layouts.site')
#section('content')
<div class="row">
<div class="col-md-12">
{!! Form::open(array('method' =>'POST', 'url' => 'pictures', 'class' => 'uk-form', 'files'=> true)) !!}
{{ csrf_field() }}
<div class="form-group">
{!! Form::label('pictures', 'Kép', array('class' => '')) !!}
<div class="uk-form-controls">
{!! Form::file('pictures[]', array('class' => '','multiple'=>true)) !!}
</div>
</div>
<div class="form-group">
<button class="uk-button">Küldés</button>
</div>
#if ($errors->has('success'))
<div class="alert alert-danger" role="alert">
<p>{{ $errors->first('success') }}</p>
</div>
#endif
#if(Session::has('picture-error'))
<div class="alert alert-danger" role="alert">
<p class="errors">{!! Session::get('error') !!}</p>
</div>
#endif
#if (count($errors) > 0)
<div class="alert alert-danger">
<ul>
#foreach ($errors->all() as $error)
<li>{{ $error }}</li>
#endforeach
</ul>
</div>
#endif
{!! Form::close() !!}
</div>
</div>
#stop
Route
Route::group(['middleware' => ['web']], function () {
Route::get('/', 'SiteController#index');
Route::get('admin', 'AdminController#index');
Route::resource('pictures', 'PicturesController');
Route::resource('users', 'UsersController');
Route::auth();
});

Answer 1

{!! Form::open... will automatically add CSRF field protection, so you don't need this {{ csrf_field() }}.