#32910 [Fbk->Opn]: session unset inside foreach breaks session write handler

[bugs dot php dot net at enca dot cz]

 ID:               32910
 User updated by:  bugs dot php dot net at enca dot cz
 Reported By:      bugs dot php dot net at enca dot cz
-Status:           Feedback
+Status:           Open
 Bug Type:         Session related
 Operating System: MS Windows Server 2003
 PHP Version:      5.0.4
 New Comment:

It doesn't work for me :-(
I tried this code in 
PHP Version 5.0.5-dev
Build Date Apr 26 2005 02:18:08
but the result is the same as in 5.0.4
I'm using php.ini-recomended without modifications


Previous Comments:
------------------------------------------------------------------------

[2005-05-02 13:40:12] [EMAIL PROTECTED]

Please try using this CVS snapshot:

  http://snaps.php.net/php5-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5.0-win32-latest.zip

Works fine for me..


------------------------------------------------------------------------

[2005-05-02 11:14:48] bugs dot php dot net at enca dot cz

Description:
------------
In this testcase the "write" function is not called. If you remove line
with "unset", the write function is called properly. If you delete whole
foreach cycle and use 
"unset($_SESSION['A']);" instead, the "write" function si also called -
as expected. This bug appear only when you call "unset" inside foreach
cycle.

My environment: 
MS Windows Server 2003 SE (Windows NT 5.2 build 3790)
Apache/2.0.53 (Win32) PHP/5.0.4

Smilar (but not exactly same) bug is described as #32564, but it is in
the No feedback status and there is no way (for me) to change this
status. I hope that this "reproduce code" is much better then codes
from #32564

I can provide more information if you ask for them.


Reproduce code:
---------------
<?php
function foo(){return(true);}
function read($id){
  return 'A|s:1:"a";B|s:1:"b";';
}
function write($id, $sess_data){
  print "I'm writing this data: $sess_data\n";
  return true;
}
header('Content-Type: text/plain');
session_set_save_handler("foo", "foo", "read", "write", "foo", "foo");
session_start();
print_r($_SESSION);
foreach($_SESSION as $lsKey => $lsVal){
  if($lsKey != 'A'){
    unset($_SESSION[$lsKey]);  //<<<<<<<< if you comment this line, the
write function is called properly
  }
}
print_r($_SESSION);
?>

Expected result:
----------------
Array
(
    [A] => a
    [B] => b
)
Array
(
    [A] => a
)
I'm writing this data: A|s:1:"a";


Actual result:
--------------
Array
(
    [A] => a
    [B] => b
)
Array
(
    [A] => a
)


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=32910&edit=1