Break array retrieved from php using jquery - php

Question

Im retrieving an array from php file called check_num.php :-
check_num.php
<?php
include 'config.php';
session_start();
$VALUE = $_SESSION["some_session_variable"];
if(isset($_POST['default'])){
$ert = "SELECT * FROM table_name WHERE something = '$VALUE' ORDER BY p_id ASC ";
$qty = mysql_query($ert);
$fgh = mysql_num_rows($qty);
$ertz = "SELECT something, COUNT(something) FROM table_name WHERE something = '$VALUE'
AND something >= 1 GROUP BY p_id ORDER BY p_id ASC";
$qtyz = mysql_query($ertz);
$tyui = mysql_num_rows($qtyz);
$data = array(
"post" => $fgh,
"likes" => $tyui
);
echo json_encode($data);
} else {
echo "0";
}
?>
Now comes the jquery part :-
<script>
$(document).ready(function(){
setInterval(function(){
var def = "one";
$.post("check_num.php", {'default': def }, function(response){
if(response != 0){
document.getElementById("total_array_count").innerHTML = response;
//document.getElementById("total_like_count").innerHTML = response.likes;
//document.getElementById("total_post_count").innerHTML = response.post;
------------------OR THIS Method-----------------
var my_array = response;
//var post_number = my_array["post"];
document.getElementById("total_array_count").innerHTML = my_array;
//document.getElementById("total_post_count").innerHTML = '<b>'+post_number+'</b>';
}
else {
document.getElementById("total_array_count").innerHTML='Error occured !';
}
});
},2500);
});
</script>
Now received output is {"post":10,"likes":1} , its an array . But when i access array values response.post or my_array["post"] the value returned is undefined.
I had gone through this :- http://www.w3schools.com/js/tryit.asp?filename=tryjs_array_object
And kind of this too:- jQuery .val() returns undefined for radio button
Followed it but no success !
Please correct my mistakes .

Answer 1

Run JSON.parse() on your result before trying to access the values. The result comes as a raw string and you have to convert it to an object first.
result = JSON.parse(result);
Alternatively, since you're already using jQuery, you can use jQuery's alias for the function.
result = $.parseJSON(result);
They are essentially the same thing.