title: PHP session cookie sessionid
body: <p>in PHP i used session and cookie not urlrewriting with PHPSESSID.
  but when i opened cookie then i saw the key value pair.but one of them is 
  path : /</p>
  
  <p>what does path mean,can you explain elaborately.
  if i change the path value to /abc/cdddddddddd/efc then what does that mean?</p>