PHP 多个单选按钮

发布于 2024-08-09 02:55:17 字数 362 浏览 4 评论 0原文

我如何处理页面中的所有单选按钮？

<input type="radio" name="radio_1" value="some" />
<input type="radio" name="radio_1" value="some other" />

<input type="radio" name="radio_2" value="some" />
<input type="radio" name="radio_2" value="some other" />

该按钮将动态添加，因此我不知道单选按钮名称（以及按钮的数量）。有没有办法通过 for 循环或类似的东西来获取所有无线电值？谢谢

原文

how can i process all radio buttons from the page?

<input type="radio" name="radio_1" value="some" />
<input type="radio" name="radio_1" value="some other" />

<input type="radio" name="radio_2" value="some" />
<input type="radio" name="radio_2" value="some other" />

this buttons will be added dynamically so i will not know the radio buttons name(and also the number of the buttons). Is there a way to get all radio values, with a for loop or something like this? thanks

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明媚如初 2024-08-16 02:55:17

使用 foreach 循环

<?php
foreach ( $_POST as $key => $val )
    echo "$key -> $val\n";
?>

$key 将是所选选项的名称，$val 是值。

Use a foreach loop

<?php
foreach ( $_POST as $key => $val )
    echo "$key -> $val\n";
?>

$key will be the name of the selected option and $val, well, the value.

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难如初 2024-08-16 02:55:17

由于浏览器只会将您的所有输入更改为 HTTP 格式的表单数据，因此您将无法区分哪些数据来自单选按钮，哪些数据来自文本框或其他输入。

如果命名约定与您的示例相同，则循环直到找不到值：

<?
  for ($idx = 1; $idx <= 1000; $idx++) {
    if (isset($_REQUEST["radio_$idx"])) {
      // handle value
    }
  }
?>

编辑或者，如果您的表单是动态生成的，您可以将其创建的单选按钮的数量编写为表单中的隐藏字段。

如果您能够更改正在生成的表单，则可以编写一个隐藏的输入，该输入提供您想要查找的所有单选按钮的列表。当您编写单选按钮时，只需创建一个以分号分隔的所有名称列表。完成后，将其写入隐藏输入。像这样的事情：

在源表单上：

<input type="hidden" name="radio_button_list" value="some_value;other_value" />

然后在您的处理程序中：

<?
  $list = explode(';', $_REQUEST['radio_button_list']);
  foreach ($list as $name) {
    $value = $_REQUEST[$name];
    // handle name & value
  }
?>

Since the browser will just change all your input to HTTP-formatted form data, you won't be able to tell what data is from a radio button versus a text box or other input.

If the naming convention is the same as your example, just loop until you don't find a value:

<?
  for ($idx = 1; $idx <= 1000; $idx++) {
    if (isset($_REQUEST["radio_$idx"])) {
      // handle value
    }
  }
?>

EDIT Alternatively, if your form is generated dynamically, you could write the number of radio buttons it created as a hidden field in the form.

If you are able to alter the form that is being generated, you could write a hidden input that provided a list of all the radio buttons that you want to look for. As you are writing the radio buttons, just make a semi-colon-separated list of all the names that you make. When you are done, write that to a hidden input. Something like this:

On the source form:

<input type="hidden" name="radio_button_list" value="some_value;other_value" />

Then in your handler:

<?
  $list = explode(';', $_REQUEST['radio_button_list']);
  foreach ($list as $name) {
    $value = $_REQUEST[$name];
    // handle name & value
  }
?>

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