onWorkerStart & onWorkerReload 调用相同的回调函数，有没简洁的写法

$worker = new Worker();
$worker->onWorkerStart = function ($worker)
{
   // 一段业务逻辑代码
  ....
}

$worker->onWorkerReload= function ($worker)
{
   // 同上 完全相同的一段业务逻辑代码
   ...
}

Worker::runAll();

$worker = new Worker();
$worker->onWorkerStart = $worker->onWorkerReload =  'on_start';

function on_start($worker)
{
    // 一段业务逻辑代码
}

Worker::runAll();