buy?min_year=1880&max_year=2019&min_rating=1&max_rating=10&genre=horror

$url = Request::path();

if (isset($_GET["state"]) && !empty($_GET['state'])) {
$state = $_GET['state'];
$url = $url . "&state=". $state;

}
if (isset($_GET["council"]) && !empty($_GET['council'])) {
$council = $_GET['council'];
$url = $url . "&council=". $council;

}
if (isset($_GET["area"]) && !empty($_GET['area'])) {
$area = $_GET['area'];
$url = $url . "&area=". $area;

{{ Form::open(array('url' => $url, 'class' => 'form-inline', 'method' => 'GET')) }}

/buystate=NY?min_year=1880&max_year=2019&min_rating=1&max_rating=10&genre=horror

/buy?state=NY&min_year=1880&max_year=2019&min_rating=1&max_rating=10&genre=horror

// Route::post(.... for forms)
Route::get('buy/{state}/{min_year}', function($state, $min_year) {
   return array('state' => $state, 'min_year' => $min_year);
});

Route::group(array('prefix' => '/state'), function(){
    Route::get('/{min_year}'), function() {
    //... and so on
   });
});