Answers for "javascirpt data response to json"

json encode js

// To encode an object (This produces a string)
var json_str = JSON.stringify(myobject); 

// To decode (This produces an object)
var obj = JSON.parse(json_str);

send json in javascript

var myObj = { "name":"Jane", "age":18, "city":"Chicago" };  // create object
var myJSON = JSON.stringify(myObj);                         // stringify
window.location = "demo.php?x=" + myJSON;                   // send to php