Fructose
Fructose is a language that compiles to PHP. Fructose's syntax is borrowed from that of Ruby's, with changes and standard library differences to make this project feasible under PHP.
It is composed of two parts - Fructose itself, which is written in C#, and libfructose - a support library written in PHP and included by every file Fructose outputs. libfructose is designed to provide a subset of the Ruby standard library to Fructose programs.
libfructose Status
Requirements
Fructose is written in C# and requires the .NET 4.0 framework to run. Fructose does work and is supported under Mono, but you will need to find yourself a copy of Microsoft.Scripting.dll and Microsoft.Dynamic.dll to get it to compile. Fructose also requires the presence of IronRuby to compile and run.
Licensing
The Fructose compiler is licensed under the New BSD license. libfructose is licensed under the zlib license.