(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)
swoole_event_add — Добавить новых callback-функций сокета в цикл событий
$fd
[, callable $read_callback
[, callable $write_callback
[, int $events = 0
]]] ) : int
fd
read_callback
write_callback
events