Zookeeper::setWatcher

(PECL zookeeper >= 0.1.0)

Zookeeper::setWatcher — Set a watcher function

說明

public Zookeeper::setWatcher(callable $watcher_cb): bool

參數(shù)

watcher_cb

A watch will be set at the server to notify the client if the node changes.

返回值

成功時返回 true， 或者在失敗時返回 false。

錯誤／異常

This method emits PHP error/warning when parameters count or types are wrong or fail to set watcher.

警告

Since version 0.3.0, this method emits ZookeeperException and it's derivatives.

參見