Lists the children of a node synchronously

# 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