Получить данные из файла php в angularjs 2

In angularjs 2 How to post data and get response from php page ? using http post Ex: my requirment is to post data from auth.js file to session.php to store session and get that session value ?

return this._http.get('../session.php' + token)
     .map((res: Response) => {
      console.info(res.json());
      return res;
    });