Phalanger - PHP Compiler for .NET

The original description is:

The Phalanger is a complex solution giving web-application developers the ability to benefit from both the ease-of-use and effectiveness of the PHP language and the power and richness of the .NET platform. This solution enables developers to painlessly deploy and run existing PHP code on an ASP.NET web server and develop cross-platform extensions to such code taking profit from the best from both sides. Compatible with PHP 5.0, the object model in Phalanger enables to combine PHP objects with the .NET ones. It is possible to use a class written in PHP from a .NET application or even to import a .NET class (written for example in C# or Visual Basic .NET) into PHP scripts provided that this class respects the PHP object model implemented in the Phalanger. The Phalanger is the only existing PHP compiler which produces .NET Framework MSIL bytecode.

Some benchmarks were posted on the website with Phalanger 1.0 Beta 3, PHP 4.3.11, and PHP 5.0.4 with and without Zend Optimizer, and some php based popular apps: Nuke and phpBB compared. The tests were done on a Windows machine. Anyway, looking at the benchmarks Roadsend seems interesting too. The idea is that PHP for .NET is a viable solution, and compiled php is an improvment.