Closed
Description
Description
The following code:
<?php
final class StreamWrapper
{
public $context;
}
$fusion = $context;
register_shutdown_function(function () {
global $shutdown;
$shutdown = true;
});
class Cycle {
public $self;
public function __construct() {
$this->self = $this;
}
}
class Canary {
public $self;
public function __construct() {
$this->self = $fusion;
}
public function __destruct() {
global $shutdown;
if (!$shutdown) {
work();
}
}
}
function work() {
global $objs, $defaultThreshold;
new Canary();
// Create some collectable garbage so the next run will not adjust
// threshold
for ($i = 0; $i < 100; $i++) {
new Cycle();
}
// Add potential garbage to buffer
foreach (array_slice($objs, 0, $defaultThreshold) as $obj) {
$o = $obj;
}
}
work();
?>To reproduce:
phpdbg test.php
> r
PHP Version
PHP 8.4.0-dev
Operating System
ubuntu 22.04