Hi!

Why im a getting this error in my view??

Controller------

 public function createPost(PostRequest $request){

       $userInput = $request->get('input');

       return view('index',compact('userInput'));
   }

View-----

@extends('welcome')
@section('content')


{!!Form::open(array('url' => '/index', 'method' =>'post'))!!}
	
	{!!Form::text('input',null)!!}

    {!!Form::submit('Send')!!}

{!!Form::close()!!}


<h1>{{$userInput}}</h1>

@stop

I dont understand..and here is my PostRequest class:

<?php

namespace App\Http\Requests;

use App\Http\Requests\Request;

class PostRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'input' =>'required'
        ];
    }
}

why is the variable undifined when i post a empty form, why isnt the validation kicking off?