The component фил in many Greek words derives from the word filos (φίλος) = friend.
So based on this knowledge we can easily conclude the meaning of the following words:
1. русофил
2. англофил
3. философия: it derives from the word: filos (φίλος) = friend + sofia (σοφία) = wisdom. So literally means friend of wisdom.
4. педофил: it derives from the word: pedi (παιδί) = children + filos (φίλος) = friend.