Arabic text is not working in server but working in localhost

Why do you link to the same question?
As I say, it's hard to see where you screw up things without any information from you.
I'll add: using Arabic text is extremely simple. I can easily do it.
Do you use Unicode? UTF8 charset in content type? HTTP-EQUIV? How about real content on the page? Real, not rendering, what you got in raw HTTP response? Do you know how Unicode data should be represented and how it is represented in the real data you got? Do you use a database with Arabic text? Do you use it correctly?
Checkup each step. This problem is not simple, it is very simple. Even for me; even though I know just a few Arabic words :-).
—SA