About iconv encountered special characters

djskjfo

When converted with iconv, it is basically normal but encounters special characters such as
iconv ("UTF-8", "shift-JIS", "." ㎡ ");
Won't show up
Who knows how to solve such a problem?

noendenergy

unicode

djskjfo

Can you be more detailed?

djskjfo

php file is UTF-8
Now want to convert to shift-JIS code
Encountered a problem with special characters

qijun2005

Is ㎡ UTF-8?

djskjfo

Yes

jadekylin

shift-JIS None ㎡
Why don't you let Little Japan change the standard?

djskjfo

php file is in UTF-8 format
iconv ("UTF-8", "shift-JIS", "." ㎡ ");
Written in php file

djskjfo

shift-JIS None ㎡
Why don't you let Little Japan change the standard?
==============================
Tested shift-JIS with ㎡

獠牙精英

djskjfo:
Tested shift-JIS with ㎡
==============================================

How to test it ??