ID: 22117
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
-Status: Open
+Status: Assigned
Bug Type: Session related
Operating System: Win NT 4
PHP Version: 4.3.0
-Assigned To:
+Assigned To: sas
Previous Comments:
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[2003-02-10 13:03:23] [EMAIL PROTECTED]
Just FYI, the following script works as expected:
<?php
session_start();
if (!isset($_SESSION['var1'])) {
$_SESSION['var1'] = "INITIALIZED";
$_SESSION['var2'] = $_SESSION['var1'];
$_SESSION['var2'] = "CHANGED";
}
var_dump($_SESSION);
?>
------------------------------------------------------------------------
[2003-02-10 12:54:13] [EMAIL PROTECTED]
A colleague points out that this script also
produces the buggy behaviour.
<?php
session_start();
$var1 = "INITIALIZED";
$var2 = $var1;
session_register("var1","var2");
$var2 = "CHANGED";
echo $var1."<br>";
echo $var2."<br>";
?>
------------------------------------------------------------------------
[2003-02-09 16:36:48] [EMAIL PROTECTED]
Further searching makes me think that this may be
related to Bug #20583 :
http://bugs.php.net/bug.php?id=20583
------------------------------------------------------------------------
[2003-02-09 16:33:11] [EMAIL PROTECTED]
Actually, I have created a simpler test case,
which produces the behaviour in one script,
and BEFORE serialization:
<?php
// bug3.php
session_start();
$var1 = $var2 = "INITIALIZED";
session_register("var1","var2");
$var2 = "CHANGED";
echo $var1."<br>";
echo $var2."<br>";
?>
Actual Output in 4.3.0:
CHANGED
CHANGED
Session data after execution
var1|s:7:"CHANGED";var2|R:1;
So it seems that $var2 is a reference of $var1,
but only if the session_start and session_register
functions are called.
Notes:
The bug occurs even if the "session_start();" and the "$var1 = $var2 =
"INITIALIZED";" lines are swapped.
The buggy behaviour disappears if I move the line
"$var2 = "CHANGED"" above the session_register() call.
------------------------------------------------------------------------
[2003-02-09 16:07:53] [EMAIL PROTECTED]
Here's the contents of the session file,
immediately after execution of my first
test script test_bug1.php, from versions
4.2.2 and 4.3.0:
session file from 4.2.2:
var1|s:11:"INITIALIZED";var2|s:11:"INITIALIZED";
session file from 4.3.0:
var1|s:11:"INITIALIZED";var2|R:1;
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/22117
--
Edit this bug report at http://bugs.php.net/?id=22117&edit=1
