Good programming language for kids
macco: I think the most important part of your choice is to keep her motivated: So I would go with Squeak or Python.
Squeak is great for learning programming; It is very easy to produce little games and things like this.
Python is great if you want to use a lot of libraries and still want a clean programming language.
Php is fine for web pages - if she loves to build them it is great, but the other languages are better suited for learning to programm.
Bottom Line: I would go with squeak!