Ajax function parameter passing to controller function in codeigniter - php

Question

I am working on codeigniter. I am calling ajax function in a view page. Ajax function is calling controller method. Ajax function is containing 3 parameters which i want to pass to controller method but due to some reason i am not able to access parameter which is coming from ajax function.
My ajax method call on drop-down change event (view page)
$('#drp').change(function(e){ //dropdown change event
var costcenter = $('#costcenter_id :selected').val(); //parameter 1
var location1 = $('#location_id :selected').val(); //parameter 2
var department = $('#department_id :selected').val(); //parameter 3
$.ajax({
cashe: false,
type: 'POST',
data: {'costcenterid':costcenter,'locationid':location1,
'departmentid':department},
url: 'http://local.desk.in/mycontroller/contollerfunction',
success: function(data)
{
alert("success");
}
});
});
This is my controller method (method in controller)
public function controllerfunction($costcenterid,$locationid,$departmentid)
{
echo "costcenter= ". $costcenterid;
echo "location= ". $locationid;
echo "department= ". $departmentid;
}
Getting error message :
Message: Missing argument 1 for assetcontroller::controllerfunction(),
Message: Missing argument 2 for assetcontroller::controllerfunction(),
Message: Missing argument 3 for assetcontroller::controllerfunction()
Why not able to send ajax parameter values to controller method?? Thanks in
advance

Answer 1

Hope this will help you :
Your ajax should be like this :
$.ajax({
url: "<?=site_url('mycontroller/contollerfunction');?>",
cache: false,
type: 'POST',
data: {'costcenterid':costcenter, 'locationid': location1, 'departmentid':department},
success: function(data)
{
alert("success");
}
});
And your controller method controllerfunction should be like this :
Use CI inbuilt $this->input->post() to access the post items like this :
public function controllerfunction()
{
$costcenterid = $this->input->post('costcenterid');
$locationid = $this->input->post('locationid');
$departmentid = $this->input->post('departmentid');
$posts = array('costcenterid' => $costcenterid,
'locationid' => $locationid,
'departmentid' => $departmentid
);
print_r($posts);die;
}