Code tạo thanh bar hiển thị số lượng đánh giá đẹp mà không cần plugin

function addstar_pttuan(){
if ( is_singular( 'product' ) ) {
  global $product;
  $rating_arr = $product->get_rating_counts();
  $review_count = $product->get_rating_count();
  $countstar = $product->get_average_rating();
  if($countstar=='0'){$countstar = 'Chưa có đánh giá';}?>
  <div class="rating-table row row-small align-middle">
      <div class="rating-table__total col large-4 small-12 medium-12">
        <div class="title-rating">Điểm đánh giá trung bình</div>
        <div class="rating_total"><?php echo $countstar;?></div>
        <div class="star-rating-custom"><?php echo wc_get_rating_html( $countstar, $review_count );?></div>
      </div>
      <div class="rating-table__bar col large-4 small-12 medium-12">
        <div class="bar-star">
            <?php for ($i=5; $i >0 ; $i--) { 
                $rating_count = 0;
                $rating_per = 0;
                if(isset($rating_arr[$i])){
                  $rating_count = $rating_arr[$i];
                  $rating_per = round(($rating_count/$review_count)*100,0);
                  }
                  echo '<div class="ptt-row star-rating-'.$i.'">';
                  echo '<div class="ptt-col-1">'.$i.'<img src="https://saigondata.vn/img/star.png"'.' class="star-cust"></div>';
                  echo '<div class="ptt-col-2"><div class="ptt-meter-bar"><div class="ptt-bar-temperature" style="width:'.$rating_per.'%"></div></div></div>';
                  echo '<div class="ptt-col-3">'.$rating_count.'</div>';
                  echo '</div>';
            };?>
        </div>
      </div>
      <div class="rating-table_cmt col large-4 small-12 medium-12">
          <a href="#reviews"><span>Để lại đánh giá</span></a>
      </div>
  </div>
<?php 
}}
add_filter( 'comments_template', 'addstar_pttuan', 10 );

.rating-table_cmt a{
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 12px 16px;
    font-size: 14px;
    line-height: 14px;
    color: #fff;
    background: #60842a;
}
.rating_total{
    font-size: 22px;
    line-height: 60px;
    color: #cb1c22;
    font-weight: 500;
    margin-bottom: 4px;
}
.title-rating{
    font-size:18px;
}
.ptt-bar-temperature{
    height: 100%;
    background:red;
    border-radius: 5px;
}
.fa-star {
    font-size: 13px;
    color: #ea9d02;
    margin-left: 3px;
}
.ptt-col-1{
    width: 35px;
    display: flex;
}
.rating-table__total,.rating-table_cmt{
    text-align:center
}
.star-rating-custom .star-rating{
    margin:auto;
}
.ptt-col-2{
    width:100%;
    margin:auto 10px;
}
.ptt-meter-bar{
    border-radius: 5px;
    height: 10px;
    width: 100%;
    background: #454444;
}
.ptt-row{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.star-cust {
    height: 15px;
    margin: auto;
}