javascript - Chosen JS does not send POST data -

i'm using chosen js plugin in order make select boxes cooler , prettier; however, something's not quite right when sending data via post php. note, i'm using codeigniter.

this html:

<select id="myselect" name="multiple[]" multiple="multiple">     <option value="1">something</option>     <option value="2">something</option>     <option value="3">something</option>     <option value="4">something</option> </select> 

this js:

$('#myselect').chosen({     max_selected_options: 4,     place_holder_text_multiple: "pick poison(s)" }); 

finally, codeigniter model in catch data sent form , insert database.

// want them introduced in column of database together, // separated commas.  $string = implode(",", $this->input->post('multiple')); 

however, gets first value introduced user.

like, if him/her picked "1, 4, 5",

it gets "1".

is there missed? thank beforehand.

update checked chrome's console in order check if data being sent. got. don't have enough reputation post image, here's link.

my results

i don't have enough reputation comment.

try casting array

$string = implode(",", (array) $this->input->post('multiple')); 

or cycle array , append values string

$msg = ""; foreach($this->input->post('multiple') $key=>$val){      $msg = $msg . "," . $val; }