Php/docs/zookeeper.getchildren
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Zookeeper::getChildren
(PECL zookeeper >= 0.1.0)
Zookeeper::getChildren — Lists the children of a node synchronously
Description
public
Zookeeper::getChildren
( string $path
[, callable $watcher_cb
= NULL
] ) : array
Parameters
path
- The name of the node. Expressed as a file name with slashes separating ancestors of the node.
watcher_cb
- If nonzero, a watch will be set at the server to notify the client if the node changes.
Return Values
Returns an array with children paths on success, and false on failure.
Errors/Exceptions
This method emits PHP error/warning when parameters count or types are wrong or fail to list children of a node.
Caution Since version 0.3.0, this method emits ZookeeperException and it's derivatives.
Examples
Example #1 Zookeeper::getChildren() example
Lists children of a node.
<?php$zookeeper = new Zookeeper('locahost:2181');$path = '/zookeeper';$r = $zookeeper->getchildren($path);if ($r) var_dump($r);else echo 'ERR';?>
The above example will output:
array(1) { [0]=> string(6) "config" }
See Also
- Zookeeper::create() - Create a node synchronously
- Zookeeper::delete() - Delete a node in zookeeper synchronously
- ZookeeperException