protected function _get_group($group)
{
if (!$this->enabled) {
return null;
}
$ghash = $this->get_group_hash($group);
if (!isset($this->cache_data[$group])) {
$this->cache_data[$group] = array();
if (isset($this->cache_files[$ghash])) {
foreach ($this->cache_files[$ghash] as $hash => $record) {
$this->cache_data[$group][$record['name']] = unserialize(file_get_contents($record['file']));
}
}
}
return $this->cache_data[$group];
}