Zookeeper::getChildren
(PECL zookeeper >= 0.1.0)
Zookeeper::getChildren — Lists the children of a node synchronously.
説明
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
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