public function __destruct()
{
//XXX 此处假定除factory不会有其他地方new API_Redis
if ($this->masterClient) {
$this->masterClient->close();
}
if ($this->slaveClient) {
$this->slaveClient->close();
}
if ($this->masterBackClient) {
$this->masterBackClient->close();
}
if ($this->slaveBackClient) {
$this->slaveBackClient->close();
}
}