<div id="sliderBigImages<?=$row['product_id']?>" class="carousel slide" data-ride="carousel">
<a class="carousel-control-prev" href="#sliderBigImages<?=$row['product_id']?>" role="button" data-slide="prev"> </a>
<a class="carousel-control-next" href="#sliderBigImages<?=$row['product_id']?>" role="button" data-slide="next"> </a>