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Zookeeper::getChildren

PHP function Edit on GitHub ✎

(PECL zookeeper >= 0.1.0)

Lists the children of a node synchronously

Description

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 its derivatives.

Examples

Zookeeper::getChildren example

Lists children of a node.

php

<?php

$zookeeper = new Zookeeper('localhost:2181');
$path = '/zookeeper';
$r = $zookeeper->getchildren($path);

if ($r) {
    var_dump($r);
} else {
    echo 'ERR';
}

?>

The above example will output:

output

array(1) {
  [0]=>
  string(6) "config"
}