Question

I am posting data to controller like this:

var postVars = new Array();
postVars[0] = key;
postVars[1] = haveCredits;
postVars[2] = creditsNeeded;
postVars[3] = creditsLeft;
//alert(postVars.join("&"));
xhr.open('POST', 'ajax');
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.send(postVars.join("&"));

How can i retrieve this values in my controller function?

Controller code:

$variableValues= explode('&',$this->input->post('postVars'));

It is returning an empty array.

Thanks in advance.

Answer 1

Change last row like this:

xhr.send("postVars="+encodeURIComponent(postVars.join("&")));

Now $variableValues= explode('&',$this->input->post('postVars')); should work.

Btw, i would like to introduce you to jQuery. It’s one of the most popular JavaScript libraries and has very powerfull AJAX API.