imap_utf8 function incorrectly convert with gbk encode

[wlx]

Using Ubuntu Feisty server, with php5-imap 5.1.2-1ubuntu1 package.
imap_utf8 function incorrectly convert with gbk encode mimestring, the gb2312 encode is no problem.
and iconv_mime_decode function can correctly convert the encoding.

Reproduce code:

<?php
echo imap_utf8("=?GBK?B?wbzP/A==?=");
echo "\n";
echo iconv_mime_decode("=?GBK?B?wbzP/A==?=",0,"UTF-8");
?>

The second line is the correctly output.

[Chuck Short (zulcss)]

If possible can you try a hardy livecd and try to reproduce?

Thanks
chuck

[wlx (wangliangxu)]

There is no problem in ubuntu gutsy.

[Chuck Short (zulcss)]

Thanks for the testing.

Regards
chuck