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.

public Swoole\Connection\Iterator::key ( void ) : int

This function returns key of the current connection.

此函数没有参数。

Key of the current connection.