wrap every two items in a loop

@php $i = 0; @endphp
  @foreach($orders as $order)
    @if($i%2 == 0)
    {{-- if the result of the modulo operation is 0, open new row --}}
      <div class="order-invoice-row">
    @endif

      <div class="order-invoice-single-print">
      </div><!--order-invoice-single-print-->


   @if($i%2 == 1)
    </div><!--end of order-invoice-row-->
   @endif

   @php $i++; @endphp
  @endforeach