Iterating through a PHP-Array with $.each - php

Question

I built an Ajax request with jQuery where - at the end of the PHP file, which is called - an array is the result:
echo json_encode(array('status' => 'true'));
Within my jQuery in the calling file, I would like to read if the status is true and I tried it with this:
$.ajax({
type: "GET",
url: "logic.php",
data: "receiver=" + receiverIds + "&subject=" + subject + "&msg=" + msg,
success: function(data){
$.each(data, function (i, elem) {
alert(elem.status);
});
}
});
but the alert is always undefined. When I insert this line before the $.each:
$("#additionalTextDiv").html(data);
I get the following result: {"status":"true"}
But why is the each function not working properly?
Thanks!

Answer 1

Change the dataType property of the options object you are setting in your AJAX call to json so the JSON string gets parsed into a JavaScript object:
$.ajax({
type: "GET",
url: "logic.php",
dataType: 'json',
...
.ajax(): http://api.jquery.com/jquery.ajax
Your $.each() loop works just fine, here is a demo: http://jsfiddle.net/54pB9/
However if you are going to loop through a lot of records a for loop will perform faster:
for (var i = 0, len = data.length; i < len; i++) {
alert(data[i].status);
}
Here is a demo: http://jsfiddle.net/54pB9/1/