Zend 框架:使用数组表示法中的表单元素 [英] Zend Framework: Working with Form elements in array notation

问题描述

我希望能够使用数组表示法在我的表单中添加一个隐藏的表单字段.我可以像这样用 HTML 做到这一点:

I would like to be able to add a hidden form field using array notation to my form. I can do this with HTML like this:

<input type="hidden" name="contacts[]" value="123" />
<input type="hidden" name="contacts[]" value="456" />

提交表单时，$_POST 数组将包含分组为数组的隐藏元素值:

When the form gets submitted, the $_POST array will contain the hidden element values grouped as an array:

array(
    'contacts' => array(
        0 => '123'
        1 => '456'
    )
)

我可以在表单中添加一个隐藏元素，并像这样指定数组表示法:

I can add a hidden element to my form, and specify array notation like this:

$form->addElement('hidden', 'contacts', array('isArray' => true));

现在，如果我用数组填充该元素，我希望它应该将值存储为数组，并将元素呈现为如上所示的 HTML:

Now if I populate that element with an array, I expect that it should store the values as an array, and render the elements as the HTML shown above:

$form->populate($_POST);

然而，这不起作用.我正在使用的 Zend Framework 版本中可能存在错误.我这样做对吗?我应该怎么做?我怎样才能达到上面的结果?如果需要，我愿意创建自定义表单元素.让我知道我需要做什么.

However, this does not work. There may be a bug in the version of Zend Framework that I am using. Am I doing this right? What should I do differently? How can I achieve the outcome above? I am willing to create a custom form element if I have to. Just let me know what I need to do.

推荐答案

要使用数组表示法，您需要指定元素属于"父数组:

To use array notation, you need to specify that the element "belongs to" a parent array:

$form->addElement('hidden', 'contact123', array('belongsTo' => 'contacts', 'value' => '123'));
$form->addElement('hidden', 'contact456', array('belongsTo' => 'contacts', 'value' => '456'));

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