# Swoole\Coroutine::getuid 獲取當前協程的ID。函數原型 ~~~ int function Swoole\Coroutine::getuid(); ~~~ 協程task的結構是： ~~~c struct _coro_task { int cid; //協程ID /** * user coroutine */ zval *function; time_t start_time; void (*post_callback)(void *param); void *post_callback_params; }; ~~~ * 返回當前協程ID，是一個由0增長的長整型。 ~~~ Swoole\Coroutine::create(function(){ echo Swoole\Coroutine::getuid(); echo "\n"; echo swoole_async_dns_lookup_coro('www.baidu.com'); }); ~~~