NAME
   PHP::Session - read / write PHP session files

SYNOPSIS
     use PHP::Session;

     my $session = PHP::Session->new($id);

     # session id
     my $id = $session->id;

     # get/set session data
     my $foo = $session->get('foo');
     $session->set(bar => $bar);

     # remove session data
     $session->unregister('foo');

     # remove all session data
     $session->unset;

     # check if data is registered
     $session->is_registered('bar');

     # save session data
     $session->save;

     # destroy session
     $session->destroy;

     # create session file, if not existent
     $session = PHP::Session->new($new_sid, { create => 1 });

DESCRIPTION
   PHP::Session provides a way to read / write PHP4 session files, with
   which you can make your Perl application session shared with PHP4.

   If you like Apache::Session interface for session management, there is a
   glue for Apache::Session of this module, Apache::Session::PHP.

OPTIONS
   Constructor "new" takes some options as hashref.

   save_path
       path to directory where session files are stored. default: "/tmp".

   serialize_handler
       type of serialization handler. Currently only PHP default
       serialization is supported.

   create
       whether to create session file, if it's not existent yet. default: 0

   auto_save
       whether to save modification to session file automatically. default:
       0

       Consider cases like this:

         my $session = PHP::Session->new($sid, { auto_save => 1 });
         $session->param(foo => 'bar');

         # Oops, you forgot save() method!

       If you set "auto_save" to true value and when you forget to call
       "save" method after parameter modification, this module would save
       session file automatically when session object goes out of scope.

       If you set it to 0 (default) and turn warnings on, this module would
       give you a warning like:

         PHP::Session: some keys are changed but not modified.

NOTES
   *   Array in PHP is hash in Perl.

   *   Objects in PHP are restored as objects blessed into
       PHP::Session::Object (Null class) and original class name is stored
       in "_class" key.

   *   Locking when save()ing data is acquired via exclusive "flock", same
       as PHP implementation.

   *   Not tested so much, thus there may be some bugs in
       (des|s)erialization code. If you find any, tell me via email.

TODO
   *   WDDX support, using WDDX.pm

AUTHOR
   Tatsuhiko Miyagawa <[email protected]>

   This library is free software; you can redistribute it and/or modify it
   under the same terms as Perl itself.

SEE ALSO
   the Apache::Session::PHP manpage, the WDDX manpage, the Apache::Session
   manpage, the CGI::kSession manpage

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