Swoole\Connection\Iterator::key
(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)
Swoole\Connection\Iterator::key — Return key of the current connection.
说明
public Swoole\Connection\Iterator::key
( void
) : int
This function returns key of the current connection.
参数
此函数没有参数。
返回值
Key of the current connection.