onWorkerStop

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function onWorkerStop(swoole_server $server, int $worker_id);

• $worker_id��һ����0-$worker_num֮������֣���ʾ���worker���̵�ID
• $worker_id�ͽ���PIDû���κι�ϵ

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                $serv->on('WorkerStop', function ($serv, $worker_id){ 
                    echo "on WorkerStop\n";
                });