« Swoole\Event::add Swoole\Event::del » PHP Manual Swoole\Event Add a callback function to the next event loop. Swoole\Event::defer (PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0) Swoole\Event::defer — Add a callback function to the next event loop. 说明 public static Swoole\Event::defer ( mixed $callback ) : void 参数 callback 返回值