如何从多个复选框帖子值中对结果进行排列？

I am building a fruit store website.

我正在建立一个水果店网站。

Currently, I wanna ask to my customers what kind of fruits they love.

目前，我想向顾客询问他们喜欢什么样的水果。

So, I created several checkbox options for them.

所以，我为他们创建了几个复选框选项。

<form action='customer_favorite' method='POST'>
  <input type='checkbox' name='chk[]' value='banana' />
  <input type='checkbox' name='chk[]' value='mango' />
  <input type='checkbox' name='chk[]' value='apple' />
  <input type='checkbox' name='chk[]' value='orange' />
  <input type='checkbox' name='chk[]' value='kiwi' />
<input type='submit' value='submit' />

I don't know how many checkboxes they will check.

我不知道他们会检查多少个复选框。
When it posts to my server, I want to get the result like this.

当它发布到我的服务器时，我想得到这样的结果。
```
apple, orange, kiwi
```
second customer would choose four of them.

第二个客户会选择其中四个。
```
banana, mango, apple, orange
```

and I will put this data into my db like this.

我会像这样把这些数据放到我的数据库中。

$data = array(
'fav_fruits' = $this->input->post('chk')
);    

$this->db->insert('customer', $data)

The problem is that I can't get result 'apple, orange, kiwi' like this.

问题是我无法得到像这样的结果'apple，orange，kiwi'。

we don't know how many checkbox values will be there.
我们不知道会有多少个复选框值。
I want to array values like this 'apple, orange, kiwi'
我想要像'apple，orange，kiwi'这样的数组值

2 个解决方案

#1

If you want the clear text values in your DB (not normalized), you can do this:

如果您想要数据库中的明文值（未规范化），您可以这样做：

$data = array(
    'fav_fruits' = json_encode($this->input->post('chk'))
);    
$this->db->insert('customer', $data)

EDIT: changed teh original implode() to json_encode due to @Madmartigan comment

编辑：由于@Madmartigan评论，将原始的implode（）更改为json_encode

#2

You will get result in array with name of your checkbox .In this case you will get like chk[0]=> , chk[1] => , and so on.. in $_POST array.

你将得到带有复选框名称的数组结果。在这种情况下，你会得到chk [0] =>，chk [1] =>，依此类推..在$ _POST数组中。

After that if u have to store it like banana, mango, apple, orange then , do implode of that array using ',' separator..

之后，如果你必须像香蕉，芒果，苹果，橙子那样存储它，那么使用'，'分隔符来破坏那个数组。

implode(',' $_POST['chk'])

#1