使用javascript在表单中添加更多行时，只有1行起作用

我有一个从mysql中选择的带有项目下拉列表的订单页面。如果我单击“添加更多”，它会工作，但当我输入数量时，请选择项目和服务。只有最后一个输入数据库并显示在发票上。附件是截图

请在此处发布您的代码，以便为so的未来访问者保留。此问题中检测到错误表单。格式错误。我想知道您的输入是否是数组
name=someName[]
。尝试将您的代码发布到数据库和html表单中。我在大约6小时前发布了所需的代码片段。。请回复。这是代码片段
-- phpMyAdmin SQL Dump
-- version 4.2.7.1
-- http://www.phpmyadmin.net
--
-- Host: 127.0.0.1
-- Generation Time: Dec 03, 2015 at 06:26 PM
-- Server version: 5.5.39
-- PHP Version: 5.4.31

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";


/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;

--
-- Database: `lms`
--

-- --------------------------------------------------------

--
-- Table structure for table `clothes`
--

CREATE TABLE IF NOT EXISTS `clothes` (
`id` int(11) NOT NULL,
  `category_id` int(11) NOT NULL,
  `name` varchar(60) NOT NULL,
  `laundry_rate` double NOT NULL,
  `dryclean_rate` double NOT NULL,
  `ironing_rate` double NOT NULL
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=95 ;

--
-- Dumping data for table `clothes`
--

INSERT INTO `clothes` (`id`, `category_id`, `name`, `laundry_rate`, `dryclean_rate`, `ironing_rate`) VALUES
(1, 2, 'Skirt/Trouser', 1300, 1400, 700),
(2, 2, 'Skirt/TrouserSuit3', 1500, 1600, 800),
(3, 2, 'Dress-Suits', 700, 800, 700),
(4, 1, 'Trousers-Jeans', 400, 500, 250),
(5, 1, 'Shirt', 500, 600, 300),
(6, 2, 'T-Shirt', 300, 400, 200),
(7, 1, 'Trousers -Silk/Linen', 500, 600, 300),
(8, 1, 'Jackets-Silk/Linen', 900, 1000, 500),
(9, 1, 'Waist-Coats', 400, 500, 200),
(10, 1, 'Jackets-Leather', 1400, 1500, 750),
(11, 1, 'Jackets-Jeans', 600, 700, 350),
(12, 1, 'Long-Coats', 1400, 1500, 750),
(13, 1, 'Safari/Without-Line', 1100, 1200, 600),
(14, 1, 'Trousers', 500, 600, 250),
(15, 1, 'Suit/Safari-2pcs', 1700, 1800, 900),
(16, 1, 'Suit-3pcs', 1800, 2000, 1000),
(17, 1, 'Shorts/Knickers', 300, 400, 200),
(18, 1, 'SportsWear-CPLT', 1100, 1200, 600),
(19, 1, 'Singlet', 200, 300, 150),
(20, 1, 'Pyjamas', 400, 500, 250),
(21, 1, 'Boxer/Short', 300, 400, 200),
(22, 1, 'French/Military-Suit', 1500, 1600, 800),
(23, 1, 'Lawyer/Graduatn-Robe', 1800, 2000, 1000),
(24, 1, 'Canvas/Sport-Shoes', 500, 500, 250),
(25, 1, 'Socks-Pair', 100, 100, 50),
(26, 1, 'Caps/Hats', 700, 800, 250),
(27, 1, 'Sweater', 500, 600, 300),
(28, 1, 'Jalabiya', 500, 600, 300),
(29, 1, 'Complete-National', 1800, 2000, 1000),
(30, 1, 'Kaftan', 400, 500, 500),
(31, 1, 'Kaftans-Silk/Senegal', 1000, 1200, 650),
(32, 1, 'Buba/Sokoto', 500, 600, 450),
(33, 1, 'Agbada-Only', 800, 1000, 500),
(34, 2, 'Pleated-Skirt(Suit)', 1800, 2000, 1000),
(35, 2, 'Dresses', 800, 900, 450),
(36, 2, 'Trouser', 400, 500, 250),
(37, 2, 'Camisole', 200, 300, 150),
(38, 2, 'Shirt/Blouse', 300, 400, 500),
(39, 2, 'Jacket', 800, 900, 500),
(40, 2, 'Skirts(Short)', 400, 500, 250),
(41, 2, 'Gown(Long/Short)', 800, 1000, 500),
(42, 2, 'Evening-Gown(L/S)', 800, 1000, 500),
(43, 2, 'Special-Lace', 1800, 2000, 1000),
(45, 1, 'T-Shirts', 200, 400, 200),
(46, 1, 'Ties', 300, 300, 150),
(47, 2, 'Beaded/Sequins-Eveng', 1800, 2000, 1000),
(48, 2, 'Waist-Coat', 300, 400, 200),
(49, 2, 'Scarf-Small', 300, 400, 200),
(50, 2, 'Head-Tie', 900, 1000, 525),
(51, 2, 'Gele', 1400, 1500, 200),
(52, 2, 'Knickers/Shorts', 300, 400, 200),
(53, 2, 'Wedding-Gown(Small)', 7500, 8000, 4000),
(54, 2, 'Wedding-Gown(Big)', 9000, 10000, 5000),
(55, 2, 'India-Saree(Complete)', 1800, 2000, 1000),
(56, 2, 'India-Saree(Half)', 1100, 1200, 600),
(57, 2, 'Kaftaan', 800, 900, 450),
(58, 2, 'Wrapper/Buba/Headtie', 900, 1050, 525),
(59, 2, 'Buba', 800, 900, 450),
(60, 2, 'Pant', 300, 400, 200),
(61, 2, 'Skirt/Blouse', 900, 1000, 500),
(62, 2, 'National-Blouse', 500, 600, 300),
(63, 3, 'Bed-sheet', 600, 700, 350),
(64, 3, 'Blanket(Single-Bed)', 1300, 1500, 750),
(65, 3, 'Blanket(Double-Bed)', 1800, 2000, 1000),
(66, 3, 'Mattress-Cover(Single)', 900, 1000, 500),
(67, 3, 'Mattress-Cover(Double)', 1100, 1200, 600),
(68, 3, 'Flat/Fitted-Sht(Single)', 900, 1000, 500),
(69, 3, 'Flat/Fitted-Sheet(Double)', 1400, 1500, 750),
(70, 3, 'Sheet-With-Skirting(Single)', 900, 1000, 500),
(71, 3, 'Sheet-With-Skirting(Double)', 1400, 1500, 750),
(72, 3, 'Duvet(Single-Bed)', 1000, 1200, 600),
(73, 3, 'Duvet(Double-Bed)', 1300, 1500, 750),
(74, 3, 'Duvet-Cover(Single-Bed)', 900, 1000, 500),
(75, 3, 'Duvet-Cover(Double-Bed)', 900, 1000, 500),
(76, 3, 'Quilt(Single-Bed)', 900, 1000, 500),
(77, 3, 'Quilt(Double-Bed)', 1300, 1500, 750),
(78, 3, 'Pillow', 900, 1000, 500),
(79, 3, 'Throw/Collar-Pillow', 1200, 1300, 650),
(80, 3, 'Pillow-Case', 100, 200, 100),
(81, 3, 'Throw/Collar-Pillow-Cover', 200, 400, 650),
(82, 3, 'Face-Towels', 50, 100, 50),
(83, 3, 'Hand-Towels', 100, 200, 100),
(84, 3, 'Bath-Towels', 300, 400, 200),
(85, 3, 'Bath Towels (Large)', 325, 650, 300),
(86, 3, 'Bath-Towels(X-Large)', 1300, 1500, 750),
(87, 3, 'Bathroom-Floor(Rugs)', 1800, 2000, 1000),
(88, 3, 'Bath-Robes', 500, 600, 300),
(89, 3, 'Curtains-(Small Singles)', 700, 800, 400),
(90, 3, 'Curtains-(Big Doubles)', 1100, 1200, 600),
(91, 3, 'Foot-Mats', 300, 400, 200),
(92, 3, 'Linen', 300, 400, 200),
(93, 3, 'Table-Covers-(Cotton)-SM', 700, 800, 300),
(94, 3, 'Table-Covers-(Cotton)-LG', 900, 1000, 400);

--
-- Indexes for dumped tables
--

--
-- Indexes for table `clothes`
--
ALTER TABLE `clothes`
 ADD PRIMARY KEY (`id`), ADD UNIQUE KEY `id_UNIQUE` (`id`), ADD UNIQUE KEY `name_UNIQUE` (`name`);

--
-- AUTO_INCREMENT for dumped tables
--

--
-- AUTO_INCREMENT for table `clothes`
--
ALTER TABLE `clothes`
MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=95;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;