if elseif statement with three condition where second condition is between two number Laravel

I want to filter results based on three conditions in Laravel view blade. I wrote this code but is not giving me the right results because I second condition has to be between two numbers. My code:

@foreach($post_array[$key] as $array)
    @if($array['diff'] <= 168)
        <td><td>
    @elseif($array['diff'] > (168) && (720))
        <td><td>
    @elseif($array['diff'] > 720)
        <td><td>
    @endif
@endforeach