Description:
------------
The datatype of given variable is changed to string.

Reproduce code:
---------------
<?
$mc = new Memcache;
$mc->connect('80.232.163.35',11212);

$id = 322;
var_dump($id);
$value = $mc->get($id);
var_dump($id);
?>

Expected result:
----------------
int(322)
int(322)

Actual result:
--------------
int(322)
string(3) "322"