PHP Manual
Swoole\WebSocket\Server
Check if the the file description is existed.

Swoole\WebSocket\Server::exist

(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)

Swoole\WebSocket\Server::exist — Check if the the file description is existed.

说明

public Swoole\WebSocket\Server::exist ( integer $fd ) : boolean

参数

fd

返回值

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