[randomdata]

> I wonder why ... Facebook is building a JVM backend of their PHP compiler .

For fun, it seems. Facebook also built a PyPy backend[1], and even their own VM[2].

[1] http://morepypy.blogspot.ca/2012/07/hello-everyone.html

[2] https://github.com/facebook/hiphop-php/tree/master/src/runti...