Форум

if (is_array($myProperty)) {
   foreach ($myProperty as $prop) {
      echo $prop;
   }
}

if (is_array($myProperty)) {
   echo implode(',', $myProperty); //первый аргумент это разделитель, можете указать что-то отличное от запятой
}

<?if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die();
/** @var array $arParams */
/** @var array $arResult */
/** @global CMain $APPLICATION */
/** @global CUser $USER */
/** @global CDatabase $DB */
/** @var CBitrixComponentTemplate $this */
/** @var string $templateName */
/** @var string $templateFile */
/** @var string $templateFolder */
/** @var string $componentPath */
/** @var CBitrixComponent $component */
$this->setFrameMode(true);
?>
<div class="news-detail">

   <div class="main-picture">
      <?
      $colvo = count($arResult["MAIN_IMAGES"]);

      if($colvo>=3):
         $k=0;
         foreach ($arResult["MAIN_IMAGES"] as $key => $img) {
            if($k>2)
               break;
            if($k==0):
            ?>
            <div class="main-photo-left">
               <a class="colorbox" title="<?=$arResult["NAME"]?>" href="<?=$img["src"]?>"><img src="<?=$img["src"]?>" width="477"></a>
            </div>
            <?else:?>
               <div class="main-photo-right">
                  <a class="colorbox" title="<?=$arResult["NAME"]?>" href="<?=$img["src"]?>"><img src="<?=$img["src"]?>" width="235"></a>
               </div>
            <?endif;?>
         <?
         $k++;
         }
      elseif($colvo==2):
         foreach ($arResult["MAIN_IMAGES"] as $key => $img) {
            ?>
               <div class="main-photo-center">
                  <a class="colorbox" title="<?=$arResult["NAME"]?>" href="<?=$img["src"]?>"><img src="<?=$img["src"]?>" width="355"></a>
               </div>
         <?
         }
      elseif($colvo==1):
         foreach ($arResult["MAIN_IMAGES"] as $key => $img) {
            ?>
               <div class="main-photo-center">
                  <a class="colorbox" title="<?=$arResult["NAME"]?>" href="<?=$img["src"]?>"><img src="<?=$img["src"]?>" width="720"></a>
               </div>
         <?
         }
      endif;
      ?>
   </div>

   <div class="area-and-adress">
      <div class="detail-adress">
         <?=$arResult["PROPERTIES"]["ADRESS"]["VALUE"]?>
      </div>
      <div class="detail-area">
         
      <?if(isset($arResult["PROPERTIES"]["AREA"]["VALUE"]) && !empty($arResult["PROPERTIES"]["AREA"]["VALUE"])):?>
         <span><?=number_format(intval($arResult["PROPERTIES"]["AREA"]["VALUE"]), 0, ',', ' ');?></span> <?=GetMessage("AREA_TEXT")?>
      <?else:?>
         <span>0</span> <?=GetMessage("AREA_TEXT")?>
      <?endif;?>

      </div>
   </div>

   <div class="property-list">
      <?
      foreach ($arResult["DISPLAY_PROPERTIES"] as $key => $property) {
         ?>
         <div class="property">
            <b><?=$property["NAME"]?></b>: <?=$property["VALUE"]?>
         </div>
         <?
      }
      ?>
   </div>

   <?if(!empty($arResult["MORE_IMAGES"])):?>
   <div class="more-photo">
      <div class="more-photo-title"><b><?=GetMessage("MORE_PHOTO_TITLE")?></b>:</div>
      <?
      foreach ($arResult["MORE_IMAGES"] as $key => $pic) {
         ?>
         <a class="colorbox more-photo-img" title="<?=$arResult["NAME"]?>" href="<?=$pic["src"]?>"><img src="<?=$pic["src"]?>" width="235"></a>
         <?
      }
      ?>
   </div>
   <?endif;?>

   <div class="detail-text">
      <?=$arResult["DETAIL_TEXT"]?>
   </div>
</div>

<div class="property-list">
      <?
      foreach ($arResult["DISPLAY_PROPERTIES"] as $key => $property) {
         ?>
         <div class="property">
            <b><?=$property["NAME"]?></b>: <?=$property["VALUE"]?>
         </div>
         <?
      }
      ?>
   </div>

<div class="property-list">

      <? foreach ($arResult["DISPLAY_PROPERTIES"] as $key => $property): ?>
         
         <? if (is_array($property['VALUE'])): ?>

             <div class="property">
                 <b><?=$property["NAME"]?></b>: <?= implode(', ', $property["VALUE"]); ?>
             </div>

         <? else: ?>

            <div class="property">
               <b><?=$property["NAME"]?></b>: <?=$property["VALUE"]?>
            </div>

         <? endif; ?>

      <? endforeach; ?>

</div>

   <div class="property-list">
      <?
      foreach ($arResult["DISPLAY_PROPERTIES"] as $key => $property) {
         ?>
         <div class="property">
            <b><?=$property["NAME"]?></b>: <?=$property["VALUE"]?>
         </div>
         <?
      }
      ?>
   </div>