How can i change the encoding of a php page?

Im trying to change the encoding of a php file (through another php page) to UTF-8 , i mean without editor .

PHP UTF16 to UTF8 conversion

Tried to read UTF16 con开发者_StackOverflow中文版tents from CSV and convert it into UTF8 using mb_convert_encoding and do utf8_decode on the text. Now compare this text to the utf8_decoded text from w

How can I convert "Western (Mac OS Roman)" formatted text to UTF-8 with PHP?

I have files being exported by Excel for Mac 20开发者_StackOverflow中文版11 VBA in Western (Mac OS Roman) as shown here:

谁人无过诗名是什么歌？