在HTML表单中提交的数组的预期顺序是什么？ [英] What is the expected order of an array submitted in an HTML form?

问题描述

我的使用案例是我有一个保存在服务器端的POST变量顺序。形式表示用户将填写以输入姓名和电子邮件列表。我使用了一个表格行，每行都有两个输入：

 < table> 
< tr> 
< td>< input type ='text'name ='name []'/>< / td> 
< td>< input type ='text'name ='email []'/>< / td> 
< / tr> 
< tr> 
< td>< input type ='text'name ='name []'/>< / td> 
< td>< input type ='text'name ='email []'/>< / td> 
< / tr> 
< / table> 
  

该行可能通过javascript进行克隆，以允许用户输入更多姓名和电子邮件，所以我赢了提前知道将提交多少人。

在服务器端，我看到$ _POST ['email']和$ _POST ['name']被设置但我想知道是否可以安全地假设$ _POST ['email'] [0]将对应于$ _POST ['name'] [0]，$ _POST ['email'] [1]将对应于$ _POST [']名称'] [1]等等。一些基本的测试似乎表明是的，但我想知道是否有保证或者我是否幸运。

>为什么不添加一个分组键：

 < td>< input type ='text'name ='user [ 0] [name]'/>< / td> 
< td>< input type ='text'name ='user [0] [email]'/>< / td> 
< / tr> 
< tr> 
< td>< input type ='text'name ='user [1] [name]'/>< / td> 
< td>< input type ='text'name ='user [1] [email]'/>< / td> 
  

然后手动设置用户索引你根据当前的号码进行克隆。这样一切都已经煤化了。

I'm wondering if there is any sort of guarantee on the order of POST variables I will see on the server side.

My use case is I have a form that a user will fill out to enter a list of names and emails. I'm using a table rows, each of which has two inputs:

<table>
<tr>
<td><input type='text' name='name[]' /></td>
<td><input type='text' name='email[]' /></td>
</tr>
<tr>
<td><input type='text' name='name[]' /></td>
<td><input type='text' name='email[]' /></td>
</tr>
</table>

The row might be cloned via javascript to allow the user to type in more names and emails so I won't know ahead of time how many will be submitted.

On the server side, I see $_POST['email'] and $_POST['name'] set but I am wondering if I can safely assume $_POST['email'][0] will correspond to $_POST['name'][0], $_POST['email'][1] will correspond to $_POST['name'][1], and so on. Some basic testing seem to indicate yes but I'm wondering if there is a guarantee or if I'm just getting lucky.

解决方案

why not add a grouping key like:

<td><input type='text' name='user[0][name]' /></td>
<td><input type='text' name='user[0][email]' /></td>
</tr>
<tr>
<td><input type='text' name='user[1][name]' /></td>
<td><input type='text' name='user[1][email]' /></td>

and then manuall set the user indexes when you clone based on the current number. This way everything is already coallated.

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