[PHP-BUG] Bug #78455 [NEW]: Access violation of private trait members

From:             developmenthero at gmail dot com
Operating system: Windows 10
PHP version:      7.3.8
Package:          PHP Language Specification
Bug Type:         Bug
Bug description:Access violation of private trait members

Description:
------------
Private members of traits are (at least) since v7.3.7 accessible from
within "using" classes now.
Unfortunately this broke triggering __get() and __set() methods within
traits.

Test script:
---------------
trait A {

    private $value = 1;

    public function getValue() {
        return $this->value;
    }

    public function __set($name, $val) {
        var_dump($name, $val);
    }

}

class B {

    use A;

    public function setValue($value) {
        // Prior to v7.3, "A::__set()" would be triggered here.
        $this->value = $value;
    }

}

$B = new B();
var_dump($B->getValue());
$B->setValue(12);
var_dump($B->getValue());


-- 
Edit bug report at https://bugs.php.net/bug.php?id=78455&edit=1
-- 
Fix committed:                    https://bugs.php.net/fix.php?id=78455&r=fixed
Fixed in release:                 https://bugs.php.net/fix.php?id=78455&r=alreadyfixed
Need backtrace:                   https://bugs.php.net/fix.php?id=78455&r=needtrace
Need Reproduce Script:            https://bugs.php.net/fix.php?id=78455&r=needscript
Try newer version:                https://bugs.php.net/fix.php?id=78455&r=oldversion
Not developer issue:              https://bugs.php.net/fix.php?id=78455&r=support
Expected behavior:                https://bugs.php.net/fix.php?id=78455&r=notwrong
Not enough info:                  https://bugs.php.net/fix.php?id=78455&r=notenoughinfo
Submitted twice:                  https://bugs.php.net/fix.php?id=78455&r=submittedtwice
register_globals:                 https://bugs.php.net/fix.php?id=78455&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=78455&r=phptooold
Daylight Savings:                 https://bugs.php.net/fix.php?id=78455&r=dst
IIS Stability:                    https://bugs.php.net/fix.php?id=78455&r=isapi
Install GNU Sed:                  https://bugs.php.net/fix.php?id=78455&r=gnused
Floating point limitations:       https://bugs.php.net/fix.php?id=78455&r=float
No Zend Extensions:               https://bugs.php.net/fix.php?id=78455&r=nozend
MySQL Configuration Error:        https://bugs.php.net/fix.php?id=78455&r=mysqlcfg