PHP Convert Windows-1251 to UTF 8

You know, message like Показать мн you see if encoding for page is windows-1251, but text encoded in utf-8.
I saw this problem in one of my project, so just change change encoding for page in utf-8 and this text will shown correctly.

Let me take you some examples:
if page in utf-8, but text in windows-1251 you wil see something like this:
???? ?? ?????? ??? ????? ??? ??????? ?? ????? ???? ??? ?????

if page in windows-1251, but text in utf-8 you see this:
"Мобильные телефоны";"Apple iPhone 4

If you have access to the Multibye package, you can try it. See the PHP page here: http://www.php.net/manual/en/function.mb-convert-encoding.php

$html_utf8 = mb_convert_encoding($html, "utf-8", "windows-1251");