编码检测php

I have fallowing string: Ëè÷íûå âñòðå÷è How to encode this string int UTF-8 file PHP?

I spend all day to get how to do this.

I think this is what you are looking for:

http://www.php.net/manual/en/function.mb-detect-encoding.php

However, I seem to remember it is quite difficult to detect encoding. On the other hand it is eay to convert if you know the source encoding:

http://www.php.net/manual/en/function.mb-convert-encoding.php