Topic: Setting _SERVER and _REQUEST in runkit sandbox

Hello everyone,

I'm trying to set these two variables, $_SERVER and $_REQUEST in runkit's sandbox.
I've installed these two packages on a Centos OS 6,

php-cli.x86_64 0:5.5.32-1.el6.remi
php-pecl-runkit.x86_64 0:1.0.4-1.el6.remi.55

from the remi-php55 repo.

Then, with these two files,
test.php:
<?php
$sandbox = new Runkit_Sandbox();
$sandbox->_SERVER = ['a' => 'b'];
$sandbox->_REQUEST = ['c' => 'd'];
$sandbox->include('./dump.inc');
// end of test.php
dump.inc:
<?php
var_dump($_SERVER, $_REQUEST);
// end of dump.inc

when I run zts-php test.php, I expect to see
array(1) {
  'a' =>
  string(1) "b"
}
array(1) {
  'c' =>
  string(1) "d"
}

but I only get
array(4) {
  ["REQUEST_TIME_FLOAT"]=>
  float(1456604014.3054)
  ["REQUEST_TIME"]=>
  int(1456604014)
  ["argv"]=>
  array(0) {
  }
  ["argc"]=>
  int(0)
}
array(0) {
}

Besides those two variables, other superglobals I need to set do accept change ($_POST, $_GET, $_COOKIE and $_FILES).

What can I do to make this behave as I expected?