From: raincomplain at outlook dot com
Operating system: Linux
PHP version: 7.4.2
Package: Testing related
Bug Type: Bug
Bug description:unset does not unset uninitialized typed properties completely
Description:
------------
After unsetting an uninitialized typed property any attempt to modify
that property will still generate a fatal error an unset seems to set
that property to null which is another issue. The later can be
illustrated after adding the magic method __get.
Test script:
---------------
**Without __get**
<?php
class Foo
{
public int $bar;
public function __set($prop, $val) {
throw new Exception('Dynamic properties are not allowed');
}
}
$f = new Foo();
unset($f->bar);
echo $f->bar
?>
**With __get**
class Foo
{
public int $bar;
public function __set($prop, $val) {
throw new Exception('Dynamic properties are not allowed');
}
public function __get($name)
{
echo 'works'.PHP_EOL;
}
}
$f = new Foo();
unset($f->bar);
echo $f->bar
Expected result:
----------------
The expected behavior is to emit a notice (PHP Notice: Undefined
property: Foo::$bar) or prevent unsetting uninitialized typed properties
in the first place.
Actual result:
--------------
**Without __get**
Typed property Foo::$bar must not be accessed before initialization
**With __get**
works
PHP Fatal error: Uncaught TypeError: Typed property Foo::$bar must be
int, null used
--
Edit bug report at https://bugs.php.net/bug.php?id=79192&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=79192&r=fixed
Fixed in release:
https://bugs.php.net/fix.php?id=79192&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=79192&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=79192&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=79192&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=79192&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=79192&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=79192&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=79192&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=79192&r=globals
PHP version support discontinued:
https://bugs.php.net/fix.php?id=79192&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=79192&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=79192&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=79192&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=79192&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=79192&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=79192&r=mysqlcfg
