protected static function backupSuperGlobalArray($superGlobalArray) {
self::$globals[$superGlobalArray] = array();
if (isset($GLOBALS[$superGlobalArray]) && is_array($GLOBALS[$superGlobalArray])) {
foreach ($GLOBALS[$superGlobalArray] as $key => $value) {
self::$globals[$superGlobalArray][$key] = serialize($value);
}
}
}