server: class Server {
       private $_serv = null;     private $_e = null;     public function __construct()     {
           $this->_serv = new swoole_server("0.0.0.0", 9501);         $this->_serv->set(array(             'worker_num' => 8,             'daemonize' => false,             'max_request' => 10000,             'dispatch_mode' => 2,             'debug_mode'=> 1,         ));         $this->_serv->on('Start', array($this, 'onStart'));         $this->_serv->on('WorkerStart', array($this, 'onWorkerStart'));         $this->_serv->on('Connect', array($this, 'onConnect'));         $this->_serv->on('Receive', array($this, 'onReceive'));         $this->_serv->on('Close', array($this, 'onClose'));         $this->_serv->start();     }     public function onStart($serv)     {
           echo "start\n";         cli_set_process_title('reload_master');     }     public function onWorkerStart($serv, $worker_id)     {
           spl_autoload_register(function($class){
               $classPath = str_replace('\\', '/', $class) .'.php';             if (file_exists($classPath)) {
                   include $classPath;             }         });         $this->_e = new \plugin\Event();     }     public function onConnect( $serv, $fd, $from_id ) {
           echo "Client {
   $fd} connect\n";     }     public function onReceive( swoole_server $serv, $fd, $from_id, $data ) {
           $serv->reload();//当接收到客户端消息时更新代码，下次再执行work代码时变（onWorkerStart），本次执行还是不变         $this->_e->say();         echo "Get Message From Client {
   $fd}:{
   $data}\n";     }     public function onClose( $serv, $fd, $from_id ) {
           echo "Client {
   $fd} close connection\n";     } } new Server();

client:

$cli = new Swoole_client(SWOOLE_SOCK_TCP); $cli->connect('127.0.0.1', 9501, 1); fwrite(STDOUT, '输入消息：'); $msg = trim(fgets(STDIN)); $cli->send($msg);