Dd-logging-php is a project mainly written in PHP, based on the View license.
Dragonfly Development PHP Logging Library
Dragonfly Development PHP Logging Library http://dflydev.com/d2code/php/dd-logging-php/
dd-logging provides a generic logging interface enabling PHP developers to enjoy some of the benefits provided Java users by way of the Apache Commons Logging library.
Inspired by Apache Commons Logging http://commons.apache.org/logging/