GET key value from AJAX response - php

Question

I'm making a cross domain call to a php which returns this:
response=2&count=15&id=84546379&firstname=adsa&emailstatus=
I want to pick out the values of response and id, but not sure how, my code is as follows:
**
xhr.request({
url: "../promo_getstate2.php",
method: "POST",
data: {
email: emailaddress,
country: country,
lang: lang,
source: '1312_XMAS_dly'
}
}, function(response){
getstate = response['response'];
regID = response['id'];
console.log(getstate)
console.log(regID)
})
but it's not geting those values. How do I do this?
The response is:
" response=2&count=15&id=84546379&firstname=adsa&emailstatus="
**

Answer 1

What you can do is create a params object of all parameters in the response as shown below:
function parseResponse(str) {
var arr = str.split("&");
var temp, params = [];
for(var i = 0; i < arr.length; ++i) {
temp = arr[i].split("=");
params[temp[0]] = temp[1];
}
return params;
}
var values = parseResponse("response=2&count=15&id=84546379&firstname=adsa&emailstatus=")
You can then access values as:
values['response']; // 2
values['id']; // 84546379

Answer 2

Code as that:
<Script language="javascript">
var vars=GetRequest("response=2&count=15&id=84546379&firstname=adsa&emailstatus=");
document.write(JSON.stringify(vars));
function GetRequest(v) {
var url = "?"+v;//location.search;
var theRequest = new Object();
if (url.indexOf("?") != -1) {
var str = url.substr(1);
strs = str.split("&");
for(var i = 0; i < strs.length; i ++) {
theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]);
}
}
return theRequest;
}
</script>
Then you can get the values. For example, the json of the result is
{"response":"2","count":"15","id":"84546379","firstname":"adsa","emailstatus":""}