(PHP 7, PECL swoole >= 2.0.0)
Swoole\Coroutine::call_user_func — Call a callback given by the first parameter
$callback
[, mixed $parameter
[, mixed $...
]] )
Calls the callback
given by the first parameter and passes the remaining parameters as arguments.
callback
The callable to be called.
parameter
Zero or more parameters to be passed to the callback.