Rake task to watch changes to .php files and run a phpunit rake task

watch.rb

require 'watchr'
                               
desc 'Start watching PHP changes and run PHPUnit'
task :watch_php do
  script = Watchr::Script.new  
  script.watch('./(.*)\.php') {|m| 
    Rake::Task["phpunit"].reenable  
    Rake::Task["phpunit"].invoke    
  } 
  handler = Watchr.handler.new;
  controller = Watchr::Controller.new(script,handler);
    
  controller.run               
end