At https://github.com/josegonzalez/homebrew-php/blob/master/Formula/phpdocumentor.rb there is a SHA1 hash and version number that needs to be updated everytime we release a new phar. This should be automated as part of the release process. See https://github.com/josegonzalez/homebrew-php/issues/589#issuecomment-20145073 for context