How can I array results from multiple checkbox post values?

Question

I am building a fruit store website.

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

So, I created several checkbox options for them.

<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.
When it posts to my server, I want to get the result like this.
```
apple, orange, kiwi
```
second customer would choose four of them.
```
banana, mango, apple, orange
```

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

$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.

we don't know how many checkbox values will be there.
I want to array values like this 'apple, orange, kiwi'

konsolenfreddy · Accepted Answer · 2012-03-13 07:40:13Z

2

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

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

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

edited Mar 13, 2012 at 7:40

answered Mar 13, 2012 at 7:31

konsolenfreddy

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2 Comments

Kasper Munck Over a year ago

Addition: How do you expect the database to know how to seperate the array in words seperated by comma. (array => apple, banana, mango)? imploding it first will domathat for you.

No Results Found Over a year ago

Other possibly better options include json_encode() and serialize(). If the values have commas in them, they'll be ambiguous with implode(', ', $fruits)

sandeep · Accepted Answer · 2012-03-13 07:40:50Z

1

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.

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

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

answered Mar 13, 2012 at 7:40

sandeep

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