Zookeeper::setWatcher

(PECL zookeeper >= 0.1.0)

Zookeeper::setWatcher — Set a watcher function

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

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

成功时返回 TRUE，或者在失败时返回 FALSE。

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

Caution

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

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