ID: 20583
User updated by: jseverson at myersinternet dot com
Reported By: jseverson at myersinternet dot com
Status: Open
Bug Type: Session related
Operating System: RedHat 7.2
PHP Version: 4CVS-2002-11-22 (stable)
New Comment:
Well, unfortunately I have bad news for you. Try using the empty() or
isset() functions on your new $_SESSION global variables. My guess is
they will always return true regardless of whether or not that variable
actually has a value. At least this was my experience when I did the
same thing you did, and went through replacing all my session
functions.
So for instance, in order to replace:
session_is_registered("variable")
you'd have to do:
!empty($_SESSION["variable"])
unfortunately, it always returns true!!
Previous Comments:
------------------------------------------------------------------------
[2003-02-26 16:07:22] charlesk at netgaintechnology dot com
I forgot the session_start(); Still the same behaviour
<?php
session_start();
$a = 4;
$test = $_SERVER["HTTP_REFERER"];
$_SESSION["test"] = $test;
$y = 3;
$t = 2;
$a = 5;
echo "$a $t $y";
?>
Output : 5 2 3
<?php
session_start();
$a = 4;
$test = $_SERVER["HTTP_REFERER"];
session_register("test");
$y = 3;
$t = 2;
$a = 5;
echo "$a $t $y";
?>
Output: 5 2 2
------------------------------------------------------------------------
[2003-02-26 16:04:14] charlesk at netgaintechnology dot com
The first one works, the second one does not.
<?php
$a = 4;
$test = $_SERVER["HTTP_REFERER"];
$_SESSION["test"] = $test;
$y = 3;
$t = 2;
$a = 5;
echo "$a $t $y";
?>
<?php
$a = 4;
$test = $_SERVER["HTTP_REFERER"];
session_register("test");
$y = 3;
$t = 2;
$a = 5;
echo "$a $t $y";
?>
If this is buggy code please tell me how.
I ended up going through _EVERY_ site that we host and changing
session_register to $_SESSION.
Charles Killmer
Windows 2000 Server IIS 5.0 PHP 4.3.1
------------------------------------------------------------------------
[2003-02-09 16:38:22] phpbugs at brianmertens dot com
Maybe this is related to the bug #22117 , that
I reported yesterday?
http://bugs.php.net/bug.php?id=22117
------------------------------------------------------------------------
[2003-02-04 13:05:49] jseverson at myersinternet dot com
Just wanted to check in on this bug and see if any progress has been
made...thanks.
------------------------------------------------------------------------
[2003-01-27 17:45:14] jseverson at myersinternet dot com
Ok, sorry, I didn't realize we weren't allowed to use Oracle in our
samples. Can you please follow these steps then to reproduce the bug:
1. Copy and paste the following code into a file, save file with .php
extension.
_______________________________________________________
<?php
session_start();
$r = $HTTP_REFERER;
echo "<h2>PHP 4.3.0 BUG</h2>";
echo "<p>r is ";
var_dump($r);
$w = "hello";
session_register( "r" );
$x = "bananas";
$y = 5;
$z = 777;
echo "<p>w is " . $w . " (should be \"hello\")\n";
echo "<p>x is " . $x . " (should be \"bananas\")\n";
echo "<p>y is " . $y . " (should be 5)\n";
echo "<p>z is " . $z . " (should be 777)\n";
?>
________________________________________________________
2. Open up the file you just saved in a web browser, copy the url in
your browser, and then close the browser. (Goal is to make sure
$HTTP_REFERER is null.)
3. Open up a clean browser, and paste the url to that file location and
press enter.
4. You should see the weird assignment statements there.
Just so you can see what my browser said, here is my output:
PHP 4.3.0 BUG
r is NULL
w is hello (should be "hello")
x is 777 (should be "bananas")
y is 777 (should be 5)
z is 777 (should be 777)
Thanks, and sorry for not providing a short, complete, self-contained
sample script earlier. I misunderstood the definition of short,
complete, self-contained script.
------------------------------------------------------------------------
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/20583
--
Edit this bug report at http://bugs.php.net/?id=20583&edit=1
