JSON IN javascript, json to javascript and vv

1.json syntax is

var person = { name: "John", age: 31, city: "New York" };

2.syntax

{"employees":[

  { "firstName":"John", "lastName":"Doe" },

  { "firstName":"Anna", "lastName":"Smith" },

  { "firstName":"Peter", "lastName":"Jones" }

]}

3.syntax

{

"employees":[ "John", "Anna", "Peter" ]

}

JSON TO JS OBJECT: means json to js object

var obj=JSON.parse("{name:john}");

obj.name; //john

JS OBJECT ||ARRAY TO JSON:

var obj = { name: "John", age: 30, city: "New York" };

var arr = [ "John", "Peter", "Sally", "Jane" ];

var myJSON = JSON.stringify(obj);

PHP

json_encode($array||OBJ); //obj or array to json

json_decode($json); //json to obj

json_decode($json,true); //json to array

• {} represents arrays
• [] represents objects
• JSON is a string