yes , I did.
english titles works good ,but if there is any
Arabic letter in the title It returns "windows-1256"

Yes exactly the same.

I am using your last xml file so you can check this link:
http://www.lejapon.org/forum/threads...paration-au-N4

Okay, try this one (allow overwrite)...

edit:removed

did not work.. now it returns letters like this "????? ???? 30 ???? ?? ????? ?????"

Alright I think I see what's going on now. Last try, then I give up on character encoding :)

didnt work .. return UTF-8

Can you paste here or pm me a thread page that links to the search page?

OK I found a solution to make it work.
I just replaced urlencode with utf8_encode and everything is fine now on my site.

Ah! That's the one combination of encoding that I didn't try! But what happens if you have an &, question mark, or comma in your title?

With question marks and commas it works fine.
When there is a & in the title, the part starting from & is stripped. But it's not a big deal as this kind of titles are rare (0,5% on my forum)
Example here:
http://www.lejapon.org/forum/threads...en-train-metro