Description:
------------
PHP 5.5.6-1+debphp.org~quantal+2

When assigning a variable to a property and then using list() on the result of that I get a segfault with code 139 being the response. 

I ran this through 3v4l and it happens on everything over PHP 5.4.0.



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

class Foo {
    protected $box;

    public function setBox(array $box)
    {
        // Breaks FPM and gives a 502 due to connection reset by peers
        list($lat1, $lon1, $lat2, $lon2) = $this->box = $box;

        return $this;
    }
}

$foo = new Foo;
$foo->setBox(explode(',', '40.688235,-74.013718,40.756427,-73.958770'));

echo "Success";

Expected result:
----------------
"Success"

Actual result:
--------------
Process exited with code 139.