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Bug #62344 Class instance unset when running __destruct
Submitted: 2012-06-17 18:09 UTC Modified: 2021-01-15 14:14 UTC
From: minghanwu at yahoo dot com Assigned: cmb (profile)
Status: Closed Package: Scripting Engine problem
PHP Version: 5.3.14 OS: Debian Linux
Private report: No CVE-ID: None
 [2012-06-17 18:09 UTC] minghanwu at yahoo dot com
Description:
------------
I use a code like below on a server with php 5.1.6 for long, and the expected 
result below is the ACTUAL output of the code. 

Recently I have a new server running 5.3.3 and no luck. 

The point is the class instance is not able to be referenced when it runs to 
__destruct(). I use some functions to help object cleaning easier.

Any comment or help will be appreciated.

Test script:
---------------
class Database {
function __destruct() {
echo "Destroyed Database\n";
}}

class Session {
private $db;
function __construct() {
$this->db = new Database();
}
function __destruct() {
echo "Destroyed Session\n";
check();
} }


$sess = new Session();
check();

die();

function check(){
global $sess;
if(isset($sess)) echo "yes\n";
else echo "no\n";
}


Expected result:
----------------
yes
Destroyed Session
yes
Destroyed Database


Actual result:
--------------
yes
Destroyed Session
no
Destroyed Database


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 [2021-01-15 14:14 UTC] cmb@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: cmb
 [2021-01-15 14:14 UTC] cmb@php.net
This is apparently fixed as of PHP 7.0.0[1].

[1] <https://3v4l.org/c55fY>
 
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