Javascript 将动态输入字段添加为数组并存储到数据库中

我有一个表单中的输入字段进入数据库

<div id="cities">
    <input type="text" name="city[]" id="1" > 
        <input type="button" id="add_city()" onClick="addCity()" value="+" />
</div>

我只得到一个结果，数据库只存储一行custId works State works Country works exept$cities它只存储一次即使我输入了更多的城市，有人能帮我吗

我是从你那里抄来的

if(is_array($state)){
   while(list($keys,$value) = each($state)){
        $sql3 = "INSERT INTO states (custId,State,country,city) 
                 VALUES ('$custId','$value','$country','$city')";
        $q3 = mysqli_query($db_conx,$sql3) or die(mysqli_error($db_conx));
    }
}

上面的代码以相同的形式来自TexBox，并且可以正常工作

<form enctype="multipart/form-data" action="sendInfo.php" method="POST">
 Id:           <input name="custId" id="custId">         
 Name:         <input name="name" id="name">
 Address:      <input name="address" id="address">
 City:         <div id="cities">
               <input type="text" name="city[]" id="1" > 
               <input type="button" id="add_city()" onClick="addCity()" value="+" />
               </div>
 State:        <?php include ("../maps/states3.php");?>
 Zip Code:     <input type="text" name="zipCode">
 Country:      <select name="country" id="country"  style="width: 150px;">
               <option value="United States">United States</option>
               </select>
 Link:         http:// <input name="url" id="url">
 Category:     <input name="category" id="category">
 Phone:        <input name="phone" id="phone">
 Fax:          <input name="fax" id="fax" >
 e-mail:       <input name="email" id="email">
 Order Number: <input name="orderNumber" id="orderNumber" >
 Image name:   <input name="image" id="image">
 Chose sites to be displayed:
               <input type="radio" value="yes" name="site1"> Site1 <br />
               <input type="radio" value="yes" name="site2"> Site2 <br />
               <input type="radio" value="yes" name="site3"> Site3 <br />
 Start time:   <input type="date" name="start">   
 Stop time:    <input type="date" name="stop">   
 Table:        <?php include ("tables2.php");?>                
 Comments:     <textarea name="comments" id="comments" title="comments" >
               </textarea> 
               <input name"submit" type="submit" value="submit" />
  </form>

身份证件：
姓名：
地址:
城市：
声明：
邮政编码：
国家：
美国
链接：http://
类别：
电话：
传真：
电邮：
订单号：
图像名称：
选择要显示的站点：
站点1

站点2

站点3

开始时间：
停止时间：
表:
评论：

我想您忘了为文本框编写value属性

  <input type="text" name="city[]" id="1" > instead of this use 

   <input type="text" name="city[]" id="1" value="1" >

---

}

你是如何让城市回归PHP的呢？@adeneo数据库只存储一个row@adeneo或者，它存储的不是一个值，而是单词array，这里一定有您没有向我们展示的内容。等等，正如@adeneo指出的，你是如何将城市提交给php的？这是一个大表单的一部分，分为几个部分。这是唯一一个不起作用的部分。所有这些都来自$u POST[“”]

<form enctype="multipart/form-data" action="sendInfo.php" method="POST">
 Id:           <input name="custId" id="custId">         
 Name:         <input name="name" id="name">
 Address:      <input name="address" id="address">
 City:         <div id="cities">
               <input type="text" name="city[]" id="1" > 
               <input type="button" id="add_city()" onClick="addCity()" value="+" />
               </div>
 State:        <?php include ("../maps/states3.php");?>
 Zip Code:     <input type="text" name="zipCode">
 Country:      <select name="country" id="country"  style="width: 150px;">
               <option value="United States">United States</option>
               </select>
 Link:         http:// <input name="url" id="url">
 Category:     <input name="category" id="category">
 Phone:        <input name="phone" id="phone">
 Fax:          <input name="fax" id="fax" >
 e-mail:       <input name="email" id="email">
 Order Number: <input name="orderNumber" id="orderNumber" >
 Image name:   <input name="image" id="image">
 Chose sites to be displayed:
               <input type="radio" value="yes" name="site1"> Site1 <br />
               <input type="radio" value="yes" name="site2"> Site2 <br />
               <input type="radio" value="yes" name="site3"> Site3 <br />
 Start time:   <input type="date" name="start">   
 Stop time:    <input type="date" name="stop">   
 Table:        <?php include ("tables2.php");?>                
 Comments:     <textarea name="comments" id="comments" title="comments" >
               </textarea> 
               <input name"submit" type="submit" value="submit" />
  </form>

  <input type="text" name="city[]" id="1" > instead of this use 

   <input type="text" name="city[]" id="1" value="1" >

 foreach($city as $key=>$value){
     echo $key."-----".$value;
 }


 if(count($state)){
    foreach($state as $key=>$val){//$val will contain state value while $key will contain key or index of array.
    $sql3 = "INSERT INTO states (custId,State,country,city) 
             VALUES ('$custId','$val','$country','$city')";
    $q3 = mysqli_query($db_conx,$sql3) or die(mysqli_error($db_conx));
}