Zookeeper::getChildren
(PECL zookeeper >= 0.1.0)
Zookeeper::getChildren — Lists the children of a node synchronously
説明
public
Zookeeper::getChildren
( string $path
[, callable $watcher_cb = null
] ) : array
パラメータ
path- The name of the node. Expressed as a file name with slashes separating ancestors of the node.
watcher_cb- If nonzero, a watch will be set at the server to notify the client if the node changes.
返り値
Returns an array with children paths on success, and false on failure.
エラー / 例外
This method emits PHP error/warning when parameters count or types are wrong or fail to list children of a node.
警告 Since version 0.3.0, this method emits ZookeeperException and it's derivatives.
例
例1 Zookeeper::getChildren() example
Lists children of a node.
<?php$zookeeper = new Zookeeper('locahost:2181');$path = '/zookeeper';$r = $zookeeper->getchildren($path);if ($r) var_dump($r);else echo 'ERR';?>
上の例の出力は以下となります。
array(1) {
[0]=>
string(6) "config"
}
参考
- Zookeeper::create() - Create a node synchronously
- Zookeeper::delete() - Delete a node in zookeeper synchronously
- ZookeeperException
