Create a handle to used communicate with zookeeper

# Zookeeper::__construct

(PECL zookeeper >= 0.1.0)

Zookeeper::__construct — Create a handle to used communicate with zookeeper

### Description

public Zookeeper::__construct(string `$host` = '', callable `$watcher_cb` = `null`, int `$recv_timeout` = 10000)

This method creates a new handle and a zookeeper session that corresponds to that handle. Session establishment is asynchronous, meaning that the session should not be considered established until (and unless) an event of state ZOO_CONNECTED_STATE is received.

### Parameters

`host`

  comma separated host:port pairs, each corresponding to a zk server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002"

`watcher_cb`

  the global watcher callback function. When notifications are triggered this function will be invoked.

`recv_timeout`

  the timeout for this session, only valid if the connections is currently connected (ie. last watcher state is ZOO_CONNECTED_STATE).

### Errors/Exceptions

This method emits PHP error/warning when parameters count or types are wrong or could not init instance.

Caution

Since version 0.3.0, this method emits ZookeeperException and it's derivatives.

### See Also

- Zookeeper::connect() - Create a handle to used communicate with zookeeper
- ZookeeperException

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