ZooKeeper
PHP Manual

Zookeeper::setWatcher

Set a watcher function.

Description

public bool Zookeeper::setWatcher ( callable $watcher_cb )

Parameters

watcher_cb

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

Return Values

Returns TRUE on success or FALSE on failure.

Errors/Exceptions

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

See Also

  • Zookeeper::exists
  • Zookeeper::get