#28352 [Opn->Bgs]: Referencing Global Variables
| From: | sniper@php.net | Date: | Mon, 05 Jul 2004 23:48:27 +0000 |
| Subject: | #28352 [Opn->Bgs]: Referencing Global Variables | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-61737@lists.php.net to get a copy of this message | ||
ID: 28352
Updated by: sniper@php.net
Reported By: hpdl at oscommerce dot com
-Status: Open
+Status: Bogus
Bug Type: Session related
Operating System: Linux
PHP Version: 4.3.4
New Comment:
This has been explained in several bug reports. Please read the
'Session related' ones with text 'references' in them..
Previous Comments:
------------------------------------------------------------------------
[2004-05-10 19:02:18] hpdl at oscommerce dot com
Description:
------------
A global variable which references a session variable
inside a class loses its global scope.
Reproduce code:
---------------
<?php
session_start();
class test {
function test() {
global $b;
if (!isset($_SESSION['a'])) {
$_SESSION['a'] = 0;
}
$b =& $_SESSION['a'];
}
}
$test = new test;
$b++;
echo $b;
echo '<br><br>';
echo '<a href="' . basename($_SERVER['PHP_SELF']) .
((defined('SID') &&
strlen(SID) > 0) ? '?' . SID : '') . '">reload</a>';
?>
Expected result:
----------------
The counter shown should be incremented on each page
reload.
Actual result:
--------------
The counter does not get incremented and stays at 1.
Changing the following line:
$b =& $_SESSION['a'];
to:
$GLOBALS['b'] =& $_SESSION['a'];
produces the expected result.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=28352&edit=1