PHP-to-Scala Migration Helper is a tool that enables individuals and organizations with a significant PHP codebase to migrate to a Java-centric environment completely free of any PHP source code, PHP tools, PHP servers, and PHP developers. PHP-to-Scala Migration Helper is technically a PHP compiler, but it translates to readable, maintainable source code rather than machine code. Its goal is not to make PHP code run faster, but it is not an unwelcome side effect.
Voca is a vocabulary trainer for foreign languages. It allows you to create and manage your own word lists and share them online. You can make word lists for any language or for other things you want to memorize. It lets you do different types of exercises, including grammar, pronunciation, and picture tests. It lets you take tests with open answers, self-check, or multiple choice. Voca has support for multiple translations of a single word.
Dr. Higgins will teach you and help you teach yourself any language. It works like a quiz, asking you the translations of words and keeping score of your correctness. It includes a number of quizzes for self-study in different languages (English, Spanish, Finnish, and a bit of Japanese). It's very easy to add your own lists, thanks to a simple file format.