Manager::getSectionIdsByElement

private function getSectionIdsByElement($elementId)
{
	$sectionIds = array();
	$query = CIBlockElement::getElementGroups($elementId, true, array(
		"ID",
		"IBLOCK_SECTION_ID",
		"IBLOCK_ELEMENT_ID",
	));
	while($section = $query->fetch())
	{
		$sectionIds[] = $section['ID'];
	}

	return $sectionIds;
}