https://hbase.apache.org/2.0/apidocs/org/apache/hadoop/hbase/ZooKeeperConnectionException.html
ZooKeeperConnectionException (Apache HBase 2.0.6 API)
apache hbaseapi
https://www.php.net/manual/tr/class.zookeeperconnectionexception.php
PHP: ZookeeperConnectionException - Manual
The ZookeeperConnectionException class
phpmanual