view rely on 'info' injected from controller, what happen if $messages is not format as array(key => array())

login.blade.php

@section('messages')
    <div id="page_messages">
    @foreach($messages as $key => $values)
        @foreach($values as $value)
            <input type="hidden" name="{{$key}}" value="{{$value}}">
        @endforeach
    @endforeach
    </div>
@endsection