Zookeeper::setWatcher
PHP function
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(PECL zookeeper >= 0.1.0)
Set a watcher function
Description
Zookeeper::setWatcher(callable $watcher_cb): bool
Parameters
watcher_cbA watch will be set at the server to notify the client if the node changes.
Return Values
Success
Errors/Exceptions
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 its derivatives.
See Also
Zookeeper::existsZookeeper::getZookeeperException