{!! Form::open(['url' => $url, 'method' =>'POST']) !!}
{{method_field('PUT')}}
<input type="submit" class="btn btn-xs btn-primary" value="Approve" onclick="return confirm('Do you really want to change approval status?');"/>
@isset($data)
    @foreach($data as $k=>$v)
        <input type="hidden" name="{{$k}}" value="{{$v}}">
    @endforeach
@endisset
{!! Form::close() !!}