Standalone function get increment_id using order id

private static function getIncrementIDfromOrderID($orderID) {
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance(); // Instance of object manager
    $resource = $objectManager->get('Magento\Framework\App\ResourceConnection');
    $connection = $resource->getConnection();
    $tableName = $resource->getTableName('sales_order'); //gives table name with prefix

    //Select Data from table
    $result = $connection->fetchAll("SELECT increment_id FROM " . $tableName . " WHERE entity_id = " . $orderID);
    if (count($result)) {
        return $result[0]['increment_id'];
    }

    return 0;
}