Php/docs/zookeeperconfig.get
ZookeeperConfig::get
(PECL zookeeper >= 0.6.0, ZooKeeper >= 3.5.0)
ZookeeperConfig::get — Gets the last committed configuration of the ZooKeeper cluster as it is known to the server to which the client is connected, synchronously
说明
public
ZookeeperConfig::get
([ callable $watcher_cb = null
[, array &$stat = null
]] ) : string
参数
watcher_cb- If nonzero, a watch will be set at the server to notify the client if the node changes.
stat- If not NULL, will hold the value of stat for the path on return.
返回值
Returns the configuration string on success, and false on failure.
错误／异常
This method emits ZookeeperException and it's derivatives when parameters count or types are wrong or fail to get configuration.
范例
Example #1 ZookeeperConfig::get() example
Get configuration.
<?php$zk = new Zookeeper();$zk->connect('localhost:2181');$zk->addAuth('digest', 'timandes:timandes');$zkConfig = $zk->getConfig();$r = $zkConfig->get();if ($r) echo $r;else echo 'ERR';?>
以上例程会输出：
server.1=localhost:2888:3888:participant;0.0.0.0:2181 version=0xca01e881a2
参见
- ZookeeperConfig::set() - Change ZK cluster ensemble membership and roles of ensemble peers
- ZookeeperConfig::add() - Add servers to the ensemble
- ZookeeperConfig::remove() - Remove servers from the ensemble
- ZookeeperException
