[php-src] Issue #7942: Readonly properties mutable when assigning reference to them
| From: | iluuu1994 | Date: | Fri, 14 Jan 2022 11:28:32 +0000 |
| Subject: | [php-src] Issue #7942: Readonly properties mutable when assigning reference to them | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-239008@lists.php.net to get a copy of this message | ||
Issue: https://github.com/php/php-src/issues/7942
Comment Author: iluuu1994
/cc @nikic
The engine does prevent creating references from
readonly properties.
https://3v4l.org/cRgNM#v8.1.1
Maybe we could do the same in the other direction.
https://3v4l.org/M1n37#v8.1.1
```php
class Foo {
public readonly int $bar;
public function __construct(int &$bar) {
// Error right here, can't assign reference
$this->bar = &$bar;
}
}
$i = 42;
$foo = new Foo($i);
$i++;
var_dump($foo->bar);
```