How to display the cost of goods in the news component?

Question

1C-Bitrix

In the news complex component on the detailed view page, I display the product through the property of the "News" infoblock - binding to the element.

<?if (count($arResult["RELATED_PRODUCT"]) > 0): ?>
<h2>Товары</h2>
<?php endif; ?>
  <div class="row section-products-area article-items">
    <?foreach($arResult["DISPLAY_PROPERTIES"] as $pid=>$arProperty):?> 
    <?if($pid =="RELATED_PRODUCT"):?> 
    <? 
    $st = 2; 
    for ($i = 0; $i < ceil(count($arProperty["VALUE"])/$st); $i++) 
    for ($j = 0; $j < $st; $j++) 
    { 
    if (isset($arProperty["VALUE"][(($i*$st)+$j)])) 
    { 
    $ar_res = CCatalogProduct::GetByIDEx($arProperty["VALUE"][(($i*$st)+$j)]);
    $picture = CFile::ShowImage($ar_res['PREVIEW_PICTURE'], "border=0", "", true); 


    $tID = $ar_res["ID"];
    $intIBlockID = 4; 
    $mxResult = CCatalogSKU::GetInfoByProductIBlock( 
    $intIBlockID 
    ); 
    if (is_array($mxResult)) 
    { 
    $rsOffers = CIBlockElement::GetList(array("PRICE"=>"ASC"),array('IBLOCK_ID' => $mxResult['IBLOCK_ID'], 'PROPERTY_'.$mxResult['SKU_PROPERTY_ID'] => $tID)); 
    while ($arOffer = $rsOffers->GetNext()) 
    { 
    $ar_price = GetCatalogProductPrice($id, 1);
    } 
    } 
    echo '<div class="col-lg-3 col-md-6 col-sm-6 col-xs-12 section-product-item">';
    echo '<div class="single-new-product mt-40 category-new-product js-product-item">';
      echo '<div class="product-img product-img--large">';
      echo '<a href="'.$ar_res["DETAIL_PAGE_URL"].'">';
      echo $picture;
    echo '</a>';
    echo '
      <div class="new-product-action">
                                  
                                  <a href="'.$ar_res["DETAIL_PAGE_URL"].'" class="js-product-more product-block-more" data-url="'.$ar_res["DETAIL_PAGE_URL"].'">
                                      Подробнее                                </a>
                                  
                              </div>
                          </div>
       <div class="product-content text-center">
                              <a href="'.$ar_res["DETAIL_PAGE_URL"].'" title="'.$ar_res["NAME"].'">
                                  <p class="product-name">'.$ar_res["NAME"].'</p>
                              </a>
                                                              <p class="product-opt-price">
                                      <span class="product-opt-price-span">Оптовая скидка</span>
                                  </p>
                                                                                          <div id="price">
                                      <p class="product-price"> '.$ar_price["PRICE"].'</p>
                                                                      </div>
                          </div>
                      </div>
                  </div>                        
       ';
    } 
    } 
    ?> 
    <?endif?> 
    <?endforeach?> 
  </div>

I'm trying to display the product value via GetCatalogProductPrice but it's empty.
How to display the cost of goods in this case?

Answer 1

but it's empty

void in $ar_price["PRICE"] or empty $ar_price array returned?