Description:
------------
I downloaded the PHP 7.4 alpha 1 release from "https://windows.php.net/downloads/qa/php-7.4.0alpha1-nts-Win32-vs16-x64.zip" and decompressed it without any modification (I did not even create a php.ini).

I then ran the attached test script with the PHP QA release ( $ php.exe test.php ) and got a segfault. I *cannot* reproduce this issue on my CentOS machine somehow.


Test script:
---------------
<?php

class Arr
{
    private $foo = '';

    public function __construct(array $array = [])
    {
        $property = 'foo';

        // segfault in PHP 7.4.0alpha1 but is fine in PHP 7.3.7RC1
        $this->{$property} = &$array[$property];

        // this is fine in both PHP versions
        // $this->foo = &$array[$property];

        \var_dump($this->foo);
    }
}

$arr = new Arr(['foo' => 'bar']);


Expected result:
----------------
string(3) "bar"

Actual result:
--------------
Segmentation fault