[Haskell-cafe] generating foreign Code (Java, C++, PHP)?

Hi list, I noticed that there are some libs / packages like atom and HJscript which allow you to write a program in a haskell EDSL and that then actually generates valid source code in another language. In the above example that would be JavaScript and C. I sure would love to be able to write PHP for instance like that but I cannot even fathom how a EDSL would have to be designed for it. Could someone here point me to literature on the topic? Günther