route and dd doesn't work

I'm new to Laravel and what i'm trying here is to simply get the input form values and display it with dd function.

routes file:

Route::get('/', [
  'as' => 'index', 
  "uses" => "IndexController@index"
]);

Route::get('/panier',[
  "uses" => "ProductController@addToCard"
]);

My form :

<form method="get" action"/panier">
        <table>
          <tr>
            <td>
              Nombre de serveurs physiques
            </td>
            <td>
              <select id="nb_serveurs" name="nb_serveurs"><option value="0">Choisir une option</option><option value="1" selected="selected" >1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option></select>
            </td>
          </tr>
          <tr>
            <td>
              Type de licence
            </td>
            <td>
              <select id="type" name="type"><option value="0">Choisir une option</option><option value="1" selected="selected" >Illimitée</option><option value="2">Standard</option></select>
            </td>
          </tr>
          <tr>
            <td>
              Durée
            </td>
            <td>
              <select id="duree" name="duree"><option value="0">Choisir une option</option><option value="1" selected="selected">1 an</option><option value="2">2 ans</option><option value="3">3 ans</option></select>
              <a class="reset_variations" href="#">Effacer</a>
            </td>
          </tr>
        </table>
        <div style="width:100%;height:50px;">
          <div class="price"><span id="total">495,00 € HT</span></div>
        </div>
        <div class="panier-button">
          <input type="submit" class="single_add_to_cart_button button alt joli-boutton" id="panier-go" value="Ajouter au panier"/>
        </div>
</form>

And the controller :

class ProductController extends Controller
{
    public function addToCard (Request $request){
      $input = Input::all();
      dd($input);
    }
}

the get works because when i submit the form my URL goes like this :

http://ift.tt/29hRWbv

But shouldn't it be like this ?

http://ift.tt/29iLRIg

and why the dd function doesn't work, it doesn't display anything ..

Sorry i'm a real newbie.

And 2nd question, how can i do this with post method, when i replace my route to post and the method form attribute it doesn't work.

Any ideas ?

via Chebli Mohamed