Zookeeper::setWatcher

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Zookeeper::setWatcher — Set a watcher function.

说明

bool Zookeeper::setWatcher ( callable $watcher_cb )

参数

watcher_cb

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

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE。

错误／异常

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

参见