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[2016-05-09 13:28 UTC] lbarnaud@php.net
Description:
------------
When __destruct() is called, following a ReflectionProperty::setValue() call, scopes seem to be wrong.
In the following reproducing script, the method `Child::__destruct()` fails to set `$this->bar to null`, with the error `Cannot access protected property Child::$bar`.
I can reproduce this in git master, but not in any version from 3v4l.org.
Test script:
---------------
<?php
class Child
{
protected $bar;
public function __destruct()
{
$this->bar = null;
}
}
class Parnt
{
protected $child;
public function doSomething()
{
$this->child = new Child();
$prop = new \ReflectionProperty($this, 'child');
$prop->setAccessible(true);
$prop->setValue($this, null);
}
}
$p = new Parnt();
$p->doSomething();
echo "OK\n";
Expected result:
----------------
OK
Actual result:
--------------
Fatal error: Uncaught Error: Cannot access protected property Child::$bar in /tmp/x.php:9
Stack trace:
#0 [internal function]: Child->__destruct()
#1 /tmp/x.php(23): ReflectionProperty->setValue(Object(Parnt), NULL)
#2 /tmp/x.php(28): Parnt->doSomething()
#3 {main}
thrown in /tmp/x.php on line 9
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Last updated: Fri Jul 04 15:01:36 2025 UTC |
Related: I got similar failures when accessing object state via `__get`, when `__get` is triggered by reflection, as the scope with which `__get` is called is wrong. Specifically, something like following: =====foo.php====== <?php class Foo { private $bar = 'bar'; public function __construct() { unset($this->bar); } } class Bar extends Foo { private $baz = 'baz'; private static $tab = 'tab'; public function __get(string $name) { var_dump($this->baz); var_dump(self::$tab); return $name; } } $r = new ReflectionProperty(Foo::class, 'bar'); $r->setAccessible(true); var_dump($r->getValue(new Bar)); =====/foo.php====== This will work in 7.0.0~7.0.7 (see https://3v4l.org/dQlsf), but will crash on master (7.1.0-DEV), with something like following: =====OUTPUT====== NULL Fatal error: Uncaught Error: Cannot access private property Bar::$tab in foo.php:21 Stack trace: #0 foo.php(20): Bar->__get('baz') #1 [internal function]: Bar->__get('bar') #2 foo.php(30): ReflectionProperty->getValue(Object(Bar)) #3 {main} thrown in /Users/ocramius/Documents/Projects/ProxyManager/foo.php on line 21 =====/OUTPUT======