我可以将关联数组放入要在 PHP 中处理的表单输入中吗？
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Can I put associative arrays in form inputs to be processed in PHP?
提问by DLH
I know I can do things like <input name="foo[]">, but is it possible to do things like <input name="foo[bar]">and have it show up in PHP as $_POST['foo']['bar']?
我知道我可以做这样的事情<input name="foo[]">，但是有可能做这样的事情<input name="foo[bar]">并且让它在 PHP 中显示为$_POST['foo']['bar']？
The reason I ask is because I'm making a huge table of form elements (including <select>with multiple selections), and I want to have my data organized cleanly for the script that I'm POSTing to. I want the input elements in each column to have the same base name, but a different row identifier as an array key. Does that make sense?
我问的原因是因为我正在制作一个巨大的表单元素表（包括<select>多个选择），并且我希望为我要发布的脚本干净地组织我的数据。我希望每一列中的输入元素具有相同的基本名称，但作为数组键的行标识符不同。那有意义吗？
EDIT:I tried exactly this already, but apparently Drupal is interfering with what I'm trying to do. I thought I was just getting my syntax wrong. Firebug tells me that my input names are constructed exactly like this, but my data comes back as [foo[bar]] => datarather than [foo] => array([bar] => data).
编辑：我已经完全尝试过了，但显然 Drupal 正在干扰我正在尝试做的事情。我以为我只是弄错了语法。萤火告诉我，我的名字输入构造完全一样，但我的数据回来为[foo[bar]] => data，而不是[foo] => array([bar] => data)。
EDIT 2:It seems my real problem was my assumption that $form_state['values']in Drupal would have the same array hierarchy as $_POST. I should never have assumed that Drupal would be that reasonable and intuitive. I apologize for wasting your time. You may go about your business.
编辑 2：看来我真正的问题是我假设$form_state['values']在 Drupal 中将具有与$_POST. 我不应该认为 Drupal 会如此合理和直观。我很抱歉浪费你的时间。你可以去做你的事了。
采纳答案by Maciej Zgadzaj
You can do this in Drupal too, quite easily. The important thing you have to remember about is setting form '#tree' parameter to TRUE. To give you a quick example:
您也可以在 Drupal 中轻松完成此操作。您必须记住的重要一点是将表单 '#tree' 参数设置为 TRUE。给你一个简单的例子：
function MYMODULE_form() {
$form = array('#tree' => TRUE);
$form['group_1']['field_1'] = array(
'#type' => 'textfield',
'#title' => 'Field 1',
);
$form['group_1']['field_2'] = array(
'#type' => 'textfield',
'#title' => 'Field 2',
);
$form['group_2']['field_3'] = array(
'#type' => 'textfield',
'#title' => 'Field 3',
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => 'Submit',
);
return $form;
}
Now, if you print_r() $form_state['values'] in MYMODULE_form_submit($form, &$form_state), you will see something like this:
现在，如果您在 MYMODULE_form_submit($form, &$form_state) 中使用 print_r() $form_state['values']，您将看到如下内容：
Array
(
[group_1] => Array
(
[field_1] => abcd
[field_2] => efgh
)
[group_2] => Array
(
[field_3] => ijkl
)
[op] => Submit
[submit] => Submit
[form_build_id] => form-7a870f2ffdd231d9f76f033f4863648d
[form_id] => test_form
)
回答by Ernest Boabramah
Let say we want to print student scores using the form below:
假设我们要使用以下表格打印学生分数：
<form action="" method="POST">
<input name="student['john']">
<input name="student['kofi']">
<input name="student['kwame']">
<input type="submit" name="submit">
</form>
and PHP code to print their scores:
和 PHP 代码来打印他们的分数：
if(isset($_POST['submit']))
{
echo $_POST['student']['john'] . '<br />';
echo $_POST['student']['kofi'] . '<br />';
echo $_POST['student']['kwame'] . '<br />';
}
This will print the values you input into the field.
这将打印您输入到字段中的值。
回答by Naftali aka Neal
Yes you can. you can even do name="foor[bar][]"and on for even more padding.
是的你可以。你甚至可以做name="foor[bar][]"更多的填充。
