Description:

MicroPHP logging package based on the idea of using closures for
configurability and extensibility. It functions as a static class,
but you can completely control the writing of log messages through
a closure function (aka anonymous functions).

Analog also comes with over a dozen pre-written handlers,
with examples for each in the examples folder. These include:
- Amon - Send logs to the Amon server monitoring tool
- Buffer - Buffer messages to send all at once (works with File,
Mail, Stderr, and Variable handlers)
- File - Append messages to a file
- FirePHP - Send messages to FirePHP browser plugin
- GELF - Send message to the Graylog2 log management server
- LevelBuffer - Buffer messages and send only if sufficient error
level reached
- Mail - Send email notices
- Mongo - Save to MongoDB collection, requires php-pecl(mongo)
package to be installed
- Multi - Send different log levels to different handlers
- Null - Do nothing
- Post - Send messages over HTTP POST to another machine
- Stderr - Send messages to STDERR
- Syslog - Send messages to syslog
- Variable - Buffer messages to a variable reference.

So while it's a micro class, it's highly extensible and very capable
out of the box too.