mqtt 问题

$mqtt = new Workerman\Mqtt\Client('*********', $options);
$mqtt->onConnect = function() use ($mqtt, $file_name) {
  $mqtt->subscribe('/001/+/+');
};

$mqtt_to = new Workerman\Mqtt\Client('**********', $options_to);
$mqtt_to->onConnect = function() use ($mqtt_to, $file_name) {
  //$mqtt_to->subscribe('/001/+/+');
};