(PECL zookeeper >= 0.1.0)
Zookeeper::setDebugLevel — Sets the debugging level for the library
$logLevel): boollogLevelZooKeeper log level constants.
成功时返回 true， 或者在失败时返回 false。
This method emits PHP error/warning when parameters count or types are wrong or fail to set debug level.
Since version 0.3.0, this method emits ZookeeperException and it's derivatives.
示例 #1 Zookeeper::setDebugLevel() example
Set debugl level.
<?php
$r = Zookeeper::setDebugLevel(Zookeeper::LOG_LEVEL_WARN);
if ($r)
echo 'SUCCESS';
else
echo 'ERR';
?>
?>以上示例会输出：
SUCCESS