Description:
------------
my configure line was:

./configure  --prefix /usr/local/php/5.3.2 --disable-libxml --disable-dom --disable-simplexml --disable-xml --disable-xmlreader --disable-xmlwriter --without-pear

Test script:
---------------
<?php
$total = 0;
f(function ($x) use (&$total) { $total += $x; }, function () use ($total) {});
var_dump($total);

$total = 0;
f(function ($x) use (&$total) { $total += $x; });
var_dump($total);

function f($g) {
  foreach (range(1, 10) as $x)
    $g($x);
}


Expected result:
----------------
The following 2 lines should be output by the script:

int(55)
int(55)

Actual result:
--------------
The script outputs the following 2 lines:

int(0)
int(55)