laravel 5 : Class 'input' not found

In Laravel 5.2 Input:: is replaced with Request::

use

Request::

Add to the top of Controller or any other Class

use Illuminate\Http\Request;

It is Input and not input. This commit removed Input facade definition from config/app.php hence you have to manually add that in to aliases array as below,

'Input' => Illuminate\Support\Facades\Input::class,

Or You can import Input facade directly as required,

use Illuminate\Support\Facades\Input;

For laravel < 5.2:

Open config/app.php and add the Input class to aliases:

'aliases' => [
// ...
  'Input' => Illuminate\Support\Facades\Input::class,
// ...
],

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For laravel >= 5.2

Change Input:: to Request::

You can add a facade in your folder\config\app.php

'Input' => Illuminate\Support\Facades\Input::class,