library/Session.php

   1 <?php
   2         // @title       Session class
   3         // @author      Matt Todd <matt@matttoddphoto.com>
   4         // @created     2005-09-26
   5         // @desc        A session class for easily accessing and administering sessions (can
   6         //              transparently keep all session data in the database)
   7         // @requires stdexception.php (StdException class)
   8
   9         include_once('stdexception.php');
  10
  11         // constants
  12         // hash type constants
  13 //      define("AUTH_HASHTYPE_SHA", 2);
  14 //      define("AUTH_HASHTYPE_MD5", 5);
  15
  16         // classes
  17         class Session {
  18                 // protected variables
  19                 private $strSID;                        // the session ID
  20
  21                 // retreive an instance of the Session object (not a singleton, more of a factory of sorts)
  22                 public static function retreive() {
  23                         return new Session();
  24                 }
  25
  26                 // initialize
  27                 public static function initialize() {
  28                         // session_id("thehub"); // must be unique
  29                         session_name("thehub");
  30                         session_start();
  31                 }
  32                 public static function flush() {
  33                         session_write_close();
  34                 }
  35                 public static function destroy() {
  36                         $_SESSION = array(); // empty session
  37                         setcookie(session_name(), '', time()-42000, '/'); // destroys associated session cookie
  38                         unset($_COOKIE[session_name()]); // just in case
  39                         session_destroy(); // destroys the session
  40                         session_start(); // overwrite it, yeah!
  41
  42                         return true;
  43                 }
  44
  45                 public static function flash() {
  46                         if(empty($_SESSION['flash'])) {
  47                                 return null;
  48                         } else {
  49                                 $flash = $_SESSION['flash'];
  50                                 $_SESSION['flash'] = null;
  51                                 return $flash;
  52                         }
  53                 }
  54                 public static function continue_to($url) {
  55                         $_SESSION['continue_to'] = $url;
  56                 }
  57
  58                 // functions
  59                 public function __set($name, $value) {
  60                         // setcookie($name, $value->username, (15 * 60), ".clayton.edu", "/");
  61                         $_SESSION[$name] = $value;
  62                 }
  63                 public function __get($name) {
  64                         return $_SESSION[$name];
  65                 }
  66
  67                 // descructor
  68                 public function __destruct() {
  69                         // possibly put some serialization code in here?
  70                         // end;
  71                 }
  72         }
  73
  74         class SessionException extends StdException {
  75         }
  76 ?>