src/log4php/LoggerHierarchy.php
public function shutdown() {
		$this->root->removeAllAppenders();
		
		foreach($this->loggers as $logger) {
			$logger->removeAllAppenders();
		}
	}
public function shutdown() {
		$this->root->removeAllAppenders();
		
		foreach($this->loggers as $logger) {
			$logger->removeAllAppenders();
		}
	}
Shutting down a hierarchy will <i>safely</i> close and remove
all appenders in all loggers including the root logger.

The shutdown method is careful to close nested
appenders before closing regular appenders. This is allows
configurations where a regular appender is attached to a logger
and again to a nested appender.

@todo Check if the last paragraph is correct.