Laravel5填充选择错误

Question

Controller:

$groups = DB::table('groups')->lists('group_name');

Then Controller->Blade:

return view('dashboard')->with('groups', $groups);

And the Blade:

@if(!empty($groups))
 {!! Form::open(array('url' => '/dashboard/send_group_msg', 'method' => 'post')) !!}
  {!! Form::select('id', $groups, null, ['class' => 'form-control']) !!}
 {!! Form:close() !!}
@endif

But this returns me this error (I tryed every possible way):

FatalErrorException in *** line 14:
syntax error, unexpected ':', expecting ',' or ';'

Line 14 is my last line from document. As you can see this is basic populating a select form in L5 but doesn't work. I tryed every possible way to do it and I was close only when I put it in array like this:

$items = array();

foreach ($groups as $group)
{
    $items[$group->id] = $group->group_name;
}

But then this returns me this error:

Trying to get property of non-object

Please suggest me a proper solution.

Answer 1

After replacing your

{!! Form:close() !!} 

with

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

you should replace

$groups = DB::table('groups')->lists('group_name');

with

$groups = DB::table('groups')->lists('group_name', 'id');

and throw away this

$items = array();

foreach ($groups as $group)
{
    $items[$group->id] = $group->group_name;
}