将多个表单输入名称循环到数组

I have a form like this:

我有一个这样的表格:

</span><select data-role=slider name="ndata[0]" /><option value=0> E </option><option value=1> F </option></select>
  <span>1b: </span><select data-role=slider name="ndata[1]" /><option value=0> E </option><option value=1> F </option></select>
  <span>1c: </span><select data-role=slider name="ndata[2]" /><option value=0> E </option><option value=1> F </option></select>

Then, I want to insert every data to a looping process in php file. This is my script:

然后,我想将每个数据插入到php文件中的循环过程中。这是我的脚本:

<?php
foreach( $_GET['ndata'] as $ch => $data ) {
    $flag = 0;
       if($data[$flag] == 0){
          echo "<li><a href=\"img2.php\" target=\"blank\">Sektor ".($flag + 1)."</a></li>\n";}
    $flag++;}
?>

I've tried that and I get some errors. Do you have any idea?

我试过了,我得到了一些错误。你有什么主意吗?

1 个解决方案

#1

I assume, you want to print something like that if "E" is selected.

我假设,如果选择“E”,你想打印类似的东西。

Sektor 1
Sektor 2

if so you should use this code segment:

如果是这样,您应该使用此代码段:

foreach( $_GET['ndata'] as $key => $value ) {
   if($value == 0) {
       echo "<li><a href=\"img2.php\" target=\"blank\">Sektor ".($key + 1)."</a></li>\n";
   }
}

because, $_GET['ndata'] will return such array:

因为,$ _GET ['ndata']会返回这样的数组:

array(3) { 
           [0]=> string(1) "0"
           [1]=> string(1) "1" 
           [2]=> string(1) "0" 
         }

so above code segment helps you to print correct sector number ($key + 1) by looking $value .

因此上面的代码段可以帮助您通过查看$ value来打印正确的扇区号($ key + 1)。

if this is not the case, can you write errors you got in detail.

如果不是这样的话,你能否写下你得到的错误。

#1