utf 8 - Problem encoding with utf-8 -

i referred serhio utf-8 encoding problem , hv been trying whole day different methods searched net :( want show chinese characters in subject lines when received in gmail shows rubbish characters. had tried put

header('content-type: text/html; charset=utf-8');  

on top of page not working

i tried add "\r\n" not working

my code below

$mail->charset = 'utf-8'; $mail->body('',$strinv); $mail->subject('"=?utf-8?b?".base64_encode(我的问题)."?=" #'.$inquiry_no); 

when received in gmail subject looks : "=?utf-8?b?".base64_encode(è®¢å •ç¡®è®¤)."?=" #00016

i appreciate can me this. thank you.

when fix subject string should this:

=?utf-8?b?russiannnn?= 

use echo function debug subject string before call $mail->subject

or do

$ssubject = '=?utf-8?b?' . base64_encode('russian') . '?='; $ssubject = $ssubject . $inquiry_no; $mail->subject($ssubject); 

good luck newbie