#!/usr/bin/perl --

use strict;
use warnings;

use CGI();
use CGI::Session();

my ($oneid);
{
  my $one = CGI::Session->new or die CGI::Session->errstr;
  $one->expire('3s');
  $one->param(qw' var value ');
  $oneid = $one->id;

  print "set exire to 3 seconds\n";
}

{
  sleep 1;
  my $bob = CGI::Session->load($oneid) or die CGI::Session->errstr;
  print "one second later $bob / $oneid load\n";
}

{
  sleep 2;
  my $bob = CGI::Session->load($oneid) or die CGI::Session->errstr;
  print "two seconds later ";
  if ( $bob->is_expired ) {
    print "$bob / $oneid is_expired\n";
  } else {
    print "var=", $bob->param('var'), "\n";
  }
}

{
  sleep 3;
  my $bob = CGI::Session->load($oneid) or die CGI::Session->errstr;
  print "three seconds later  ";
  if ( $bob->is_expired ) {
    print "$bob / $oneid is_expired\n";
  } else {
    print "var=", $bob->param('var'), "\n";
  }
}

__END__
set exire to 3 seconds
one second later CGI::Session=HASH(0x182d050) / 6c9785d1a7916299004b02be2ab6ccd7 load
two seconds later var=value
three seconds later  CGI::Session=HASH(0x2260b8) / 6c9785d1a7916299004b02be2ab6ccd7 is_expired