Элементы из нескольких инфоблоков

Bitrix all elements iblock

						<?
							$newsId = getElem(449)["PROP"]["PRESS_NEWS"]["VALUE"];
							$pressIblocks = IBLOCK_POSTS;
							$arFilter = Array("IBLOCK_ID" => $pressIblocks, "ACTIVE" => "Y", "ID" => $newsId, "PROPERTY_".showPost() => "Y");
							$res = CIBlockElement::GetList(Array("id" => $newsId), $arFilter, false, ["nPageSize" => 1], array());
							$news = [];
							while($ob = $res->Fetch())
							{
								$news[] = $ob;
							}
							$mainNews = $news;
							if (!empty($news)) {
						?>
            
            							<div class="news mobile-swiper swiper">
								<div class="swiper-wrapper news-swiper-wrapper">
									<? $anim = 0.7; ?>
									<?foreach($news as $key => $arItem):?>
									<? 
										$dateActive = str_replace('.', ' / ', $arItem["DATE_ACTIVE_FROM"]);
										$detailUrl = str_replace('#SITE_DIR#', '', $arItem["DETAIL_PAGE_URL"]);

										if ($arItem["IBLOCK_SECTION_ID"]) {
											$res = CIBlockSection::GetByID($arItem["IBLOCK_SECTION_ID"]);
											if($ar_res = $res->GetNext()) {
												$detailUrl = str_replace('#SECTION_CODE#', $ar_res["CODE"], $detailUrl);
											}
										}
						
										$detailUrl = str_replace('#ELEMENT_CODE#', $arItem["CODE"], $detailUrl);
									?>

										<div class="swiper-slide news-card news-card-large wow fadeInUp" data-wow-duration="1.5s" data-wow-delay="0.5s">
											<a href="<?= $detailUrl; ?>" class="news-card-image">
												<? if ($arItem['PREVIEW_PICTURE']) { ?>
													<img src="<?= CFile::GetPath($arItem['PREVIEW_PICTURE']); ?>" alt="<?= $arItem["NAME"]; ?>">
												<? } else { ?>
													<img src="<?= SITE_TEMPLATE_PATH ?>/assets/img/no_photo.png" alt="<?= $arElement["NAME"]; ?>" loading="lazy">
												<? } ?>
												<? if ($arItem["DATE_ACTIVE_FROM"]) { ?>
													<span class="news-card-date"><?= $dateActive; ?></span>
												<? } ?>
											</a>
											<div class="tags tags-column tags-column-end tags-micro goods-card-tags">
												<span class="tag tag-theme">Главная новость</span>
											</div>
											<div class="news-card-text">
												<h3><a href="<?= $detailUrl; ?>"><?= $arItem["NAME"]; ?></a></h3>
												<?= $arItem['PREVIEW_TEXT']; ?>
											</div>
										</div>
									<?endforeach;?>

								</div>
								<div class="swiper-scrollbar news-swiper-scrollbar"></div>
							</div>
						<? } } ?>