hola tengo esto
    Código PHP:
    <? foreach ($xopie->products as $product) { ?>
            
            
          
            
            
            <div class="homePromo <?=(in_array("ECOMMERCE_PRODUCTS_OPTION_HIGHLIGHT", $product->options) ? "productHighlight" : "");?>">
            <div class="homePromoIn">
              
              <span><?=$product->idProduct;?>  - <?=$product->idObject;?> </span>
              <h3><a href="tags/product/<?=$product->reference;?>"><img src="<?=$product->getLargeImage();?>" alt="<?=encodeHtml($product->name);?>" width="130" height="130" /> <span class="pName"><?=cut($product->name, 55, CUT_CHARS);?></span></a> <? if (in_array("ECOMMERCE_PRODUCTS_OPTION_NEW", $product->options) ? "productNew" : "") { ?><span class="newProduct"><?=i18n("newProduct");?></span><? } ?></h3>
              <p class="shortDesc"><?=$product->getShortDescription(80, CUT_CHARS);?></p>
              <? if (in_array("ECOMMERCE_PRODUCTS_OPTION_BARGAIN", $product->options) && $product->bargainDiscount) { ?>
                <p class="price"><span class="oldPrice"><?=$product->getOldPrice();?></span> <?=$product->getPrice();?><? if ($xopie->includeTax) { ?> <span class="priceTax">(<?=i18n("taxesIncluded", $xopie->taxName);?>)</span><? } ?></p>
              <? } else { ?>
                <p class="price"><?=$product->getPrice();?><? if ($xopie->includeTax) { ?> <span class="priceTax">(<?=i18n("taxesIncluded", $xopie->taxName);?>)</span><? } ?></p>
              <? } ?>
            </div>
            </div>
        <? } ?>    
  
lo que no se como hacer es que me agrupe 2 resultados del array y ponerlos dentro de un <div> 
me explico 
<div>
idProduct 1
idProduct2 
</div> 
<div>
idProduct 3
idProduct4 
</div>
... 
y asi hasta que recorra todo el array 
gracias de antemano