Добавление OG разместик

og:title и og:description из meta title и meta description

global $APPLICATION;

$APPLICATION->AddHeadString('<meta property="og:title" content="' . $arResult["IPROPERTY_VALUES"]["ELEMENT_META_TITLE"] . '" />');
$APPLICATION->AddHeadString('<meta property="og:description" content="' . $arResult["IPROPERTY_VALUES"]["ELEMENT_META_DESCRIPTION"] . '" />');
$APPLICATION->AddHeadString('<meta property="og:image" content="' . $arResult["PREVIEW_PICTURE"]["SRC"] . '" />');