PropertyFeature::getFilteredPropertyCodes

static function getFilteredPropertyCodes(int $iblockId, array $filter, array $parameters = []): ?array
{
	if (MainConfigOption::get('iblock', 'property_features_enabled') !== 'Y')
	{
		return null;
	}

	if ($iblockId <= 0)
	{
		return null;
	}
	if (!isset($filter['=MODULE_ID']) || !isset($filter['=FEATURE_ID']))
	{
		return null;
	}

	$getCode = (isset($parameters['CODE']) && $parameters['CODE'] == 'Y');

	$result = [];
	$filter['=PROPERTY.IBLOCK_ID'] = $iblockId;
	$filter['=PROPERTY.ACTIVE'] = 'Y';
	$filter['=IS_ENABLED'] = 'Y';
	$iterator = IblockPropertyFeatureTable::getList([
		'select' => [
			'IBLOCK_PROPERTY_ID' => 'PROPERTY.ID',
			'IBLOCK_PROPERTY_CODE' => 'PROPERTY.CODE',
			'IBLOCK_PROPERTY_SORT' => 'PROPERTY.SORT',
		],
		'filter' => $filter,
		'order' => [
			'IBLOCK_PROPERTY_SORT' => 'ASC',
			'IBLOCK_PROPERTY_ID' => 'ASC',
		],
	]);
	while ($row = $iterator->fetch())
	{
		$result[(int)$row['IBLOCK_PROPERTY_ID']] = self::getPropertyCode(
			[
				'ID' => $row['IBLOCK_PROPERTY_ID'],
				'CODE' => $row['IBLOCK_PROPERTY_CODE']
			],
			$getCode
		);
	}
	unset($row, $iterator);
	unset($filter, $getCode);

	return (!empty($result) ? array_values($result) : null);
}