lib/session_handler.inc.php

   1 <?php
   2 class FileSessionHandler {
   3     private $savePath;
   4
   5     function open($savePath, $sessionName) {
   6         $this->savePath = $savePath;
   7         if (!is_dir($this->savePath)) {
   8             mkdir($this->savePath, 0777);
   9         }
  10
  11         return true;
  12     }
  13
  14     function close() {
  15         return true;
  16     }
  17
  18     function read($id) {
  19         return (string)@file_get_contents("$this->savePath/qt_sess_$id");
  20     }
  21
  22     function write($id, $data) {
  23         $result = file_put_contents("$this->savePath/qt_sess_$id", $data);
  24         chmod("$this->savePath/qt_sess_$id", 0600);
  25
  26         return ($result === false) ? false : true;
  27     }
  28
  29     function destroy($id) {
  30         $file = "$this->savePath/qt_sess_$id";
  31         if (file_exists($file)) {
  32             unlink($file);
  33         }
  34
  35         return true;
  36     }
  37
  38     function gc($maxlifetime) {
  39         foreach (glob("$this->savePath/qt_sess_*") as $file) {
  40             if (filemtime($file) + $maxlifetime < time() && file_exists($file)) {
  41                 unlink($file);
  42             }
  43         }
  44
  45         return true;
  46     }
  47 }
  48
  49 $handler = new FileSessionHandler();
  50 session_set_save_handler(
  51     array($handler, 'open'),
  52     array($handler, 'close'),
  53     array($handler, 'read'),
  54     array($handler, 'write'),
  55     array($handler, 'destroy'),
  56     array($handler, 'gc')
  57 );
  58
  59 // the following prevents unexpected effects when using objects as save handlers
  60 register_shutdown_function('session_write_close');
  61 ?>