« Swoole\Server::listen Swoole\Server::pause » PHP Manual Swoole\Server Register a callback function by event name. Swoole\Server::on (PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0) Swoole\Server::on — Register a callback function by event name. 说明 public Swoole\Server::on ( string $event_name , callable $callback ) : void 参数 event_name callback 返回值