catalog.section.list

$sect = CIBlockSection::GetList(    
             Array("sort"=>"asc", 'name'=>'asc'),      
             Array('IBLOCK_ID'=>3,      'ID'=>$arResult['ID'],     'GLOBAL_ACTIVE'=>"Y",     'CNT_ACTIVE'=>true    ),     
             true,      
             array('NAME')); 
while($el = $sect->Fetch()):    
 $count += $el["ELEMENT_CNT"]; 
endwhile; 
echo 'Товаров: '.$count;