FirePHRuby

1. rails-firephp gem
   Homepage: http://rubyforge.org/projects/rails-firephp/
   Rails plugin to go along with it: http://github.com/smith/firephp_rails/tree/master
2. FirePHRuby
   Homepage: http://firephruby.rubyforge.org/
   Project Site: http://rubyforge.org/projects/firephruby/

Quick Reference

• Install FirePHRuby with
$ gem install firephruby
  
• For Ruby on Rails put require 'firephruby' in your app/controllers/application.rb
• In a Rails controller action do:
  
  fire_log 'Log message'
  fire_info 'Info message'
  fire_warn 'Warn message'
  fire_error 'Error message'
• In an erb-template:
  
  <% fire_log 'Log message' %>
  <% fire_info 'Info message' %>
  <% fire_warn 'Warn message' %>
  <% fire_error 'Error message' %>
• In CGI require 'firephruby'
  
  console = Fireruby::CGI.new
  console.log('Log message')
  console.info('Info message')
  console.warn('Warn message')
  console.error('Error message')
  or with plain WEBrick (similiar for Mongrel):
  require 'firephruby'

  # then within do_GET or a mounted Proc:

  response.fire_log 'Log message'

  response.fire_info 'Info message'

  response.fire_warn "Warn message"

  response.fire_error "Error message"

These examples all display the familiar

http://www.firephp.org/Wiki/Libraries/Ruby