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Doc Bug #17069 Session & register_globals
Submitted: 2002-05-07 05:57 UTC Modified: 2002-10-03 22:41 UTC
Votes:3
Avg. Score:5.0 ± 0.0
Reproduced:3 of 3 (100.0%)
Same Version:2 (66.7%)
Same OS:2 (66.7%)
From: drnix at aha dot ru Assigned:
Status: Closed Package: Documentation problem
PHP Version: 4.1.2 OS: Windows 2000
Private report: No CVE-ID: None
View Developer Edit
 [2002-05-07 05:57 UTC] drnix at aha dot ru 
This code don't work properly:
----
<?php
session_start();
if (get_cfg_var('register_globals')) {
  if (!session_is_registered('step')) { 
    session_register("step");
    $step = 0;
  }
} else {
  if (!isset($_SESSION['step'])) {
    $_SESSION['step'] = 0;
  }
}
echo $_SESSION['step']++;
echo session_encode();
?>
<br><A HREF="<?php echo $_SERVER['PHP_SELF']?>">Reload</A>
----

If register_globals is On, reload will increment counter. 

If register_globals is Off, session will "read_only" like. 
It create session file with zero length. Any write not occurs. 
session_encode() returns a empty string;

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 [2002-05-30 06:46 UTC] mfischer@php.net 
It's a mis-assumption that session_register()ing a global variable put's it into $_SESSION in the same request. 

Sessions never behaved this way.

The documentation should be clearer on this, reclassifying.
 [2002-08-23 08:04 UTC] mfischer@php.net 
I'm wondering if this is actually still true. Can anyone confirm this?
 [2002-10-03 22:41 UTC] iliaa@php.net 
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.
 
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