add values to cookiephp code example

Example 1: cookie are not set in php

setcookie('username',$username,time()+60*60*24*365);
// 'Force' the cookie to exists
$_COOKIE['username'] = $username;

Example 2: php set cookie

<?php
  $name = 'COOKIE_NAME';
  $value = 'VALUE';
  $expireTime = strtotime('+1 years');
  $path = '/';
  setcookie($name,$value,$expireTime,$path);