如何获取Laravel 4控制器中一系列复选框的值（如果选中）

I would like to get the values for a series of checkboxes I have set up in a Laravel 4 form. Here is the code in the view setting up the checkboxes:

@foreach ($friends as $friend)
<input tabindex="1" type="checkbox" name="friend[]" id="{{$friend}}" value="{{$friend}}">
@endforeach

In my controller, I would like to get the values for the checked boxes and put them in an array. I am not exactly sure how to do this, but I assume it is something like:

array[];

foreach($friend as $x)
if (isset(Input::get('friend')) {
        array[] = Input::get('friend');

 } 
endforeach

Could you provide me with a solution to do this? Thank you.

EDIT:

This is what I have in the controller:

public function describe_favorite() {

            $fan = Fan::find(Auth::user()->id);
            $fan->favorite_venue = Input::get('venue');
            $fan->favorite_experience = Input::get('experience');

            $friends_checked = Input::get('friend[]');

            print_r($friends_checked);

            if(is_array($friends_checked))
            {
             $fan->experience_friends = 5;
            }

            $fan->save();


            return Redirect::to('fans/home');

        }

It is not going through the "if" loop. How do I see the output of the print_r to see what's in the $friends_checked variable?

If checkboxes are related then you should use [] in the name attribute.

@foreach ($friends as $friend)
<input tabindex="1" type="checkbox" name="friend[]" id="{{$friend}}" value="{{$friend}}">
@endforeach


$friends_checked = Input::get('friend');
if(is_array($friends_checked))
{
   // do stuff with checked friends
}

Using name="friend[]" in the form field creates an array named friend that is passed to the server, as opposed to name="friend" which passes a string value to the server.

The array friend must have a key . If there is $friend->id you could try something like this.

 @foreach ($friends as $friend)
  <input tabindex="1" type="checkbox" name="friend[{{$friend->id}}]" id="{{$friend}}">
 @endforeach