State::getLandingSections

static function getLandingSections(): array
{
	if (self::$landingSections === null)
	{
		self::$landingSections = [];

		if (!Loader::includeModule('landing'))
		{
			return self::$landingSections;
		}

		$iterator = LandingInternalsHookDataTable::getList([
			'runtime' => [
				new MainORMFieldsRelationsReference(
					'TMP_LANDING_SITE',
					'BitrixLandingInternalsSiteTable',
					['=this.ENTITY_ID' => 'ref.ID']
				)
			],
			'select' => ['VALUE'],
			'filter' => [
				'=ENTITY_TYPE' => LandingHook::ENTITY_TYPE_SITE,
				'=HOOK' => 'SETTINGS',
				'=CODE' => 'SECTION_ID',
				'=TMP_LANDING_SITE.DELETED' => 'N',
			],
			'cache' => ['ttl' => 86400],
		]);
		while ($row = $iterator->fetch())
		{
			$id = (int)$row['VALUE'];
			if ($id <= 0)
			{
				continue;
			}
			self::$landingSections[$id] = $id;
		}
		unset($id, $row, $iterator);

		if (!empty(self::$landingSections))
		{
			self::$landingSections = array_values(self::$landingSections);
		}
	}

	return self::$landingSections;
}