src/log4php/LoggerAppender.php
public function addFilter($filter) {
		if($this->filter === null) {
			$this->filter = $filter;
		} else {
			$this->filter->addNext($filter);
		}
	}
public function addFilter($filter) {
		if($this->filter === null) {
			$this->filter = $filter;
		} else {
			$this->filter->addNext($filter);
		}
	}
Adds a filter to the end of the filter chain.
@param LoggerFilter $filter add a new LoggerFilter