framework: blade php tag doesn't get commented

• Laravel Version: 5.5
• PHP Version: 7.0.18
• Database Driver & Version: mysql

Hi, I have this code that is commented by {{-- --}} tags:

{{-- 
            @php
            $i=-1;
            @endphp
            @foreach($mostLikedProducts as $instagramMedia)
                @php
                $i++;
                $arrayPrice = price_format($instagramMedia->products->price);
                $price = $arrayPrice['num'];
                $priceUnit = $arrayPrice['unit'];
                @endphp
                <section class="section-padding cl popular-product">
                    <div class="col-14 content-wrap">
                        <strong class="text-primary">{{ $instagramMedia->like }} {{ trans('instagram.likes') }}</strong>
                        <a href="{{ url(productUrl($instagramMedia->products))}}" class="" title="{{$instagramMedia->products->title}}" >
                            <h2 class="no-side-margin text-xl">{{ $instagramMedia->products->title }}</h2>
                        </a>
                        <p class="opacity-75 text-md">{{ $instagramMedia->products->description }}</p><br><br>
                        
                    </div><!--  /.figcaption -->
                    @if($i % 2 != 0)
                        <div class="img-wrap col-10">
                            <img src="{{ $instagramMedia->products->media->link }}" alt="{{ $instagramMedia->products->title }}">
                        </div>
                    @endif
                </section>
                <hr>
            @endforeach
 --}}

But the part in php tags doesn’t get comment and this is the error:

Line 538 those codes are in php tags also $i=-1 is in php tags that is commented.