编码转换不了，怪了

PHP code

var_dump($message);
$charset = mb_detect_encoding($message);
$message = iconv('UTF-8','GBK//IGNORE',$message);
//$message = mb_convert_encoding($message, 'GBK', 'UTF-8');
$charset2 = mb_detect_encoding($message);
var_dump($charset,$charset2,$message);

输出：
string '灏婃暚鐨刴ytest_0鎮ㄥソ锛佹偍鐨勮鍗?20120717-1504-6317宸叉敹鍒帮紝璇峰敖蹇€氳繃缃戜笂閾惰浠樻78.000鍏冿紝绁濇偍閲囪喘鎰夊揩锛佹湇鍔＄儹绾匡細4001156677' (length=159)
string 'UTF-8' (length=5)
string 'UTF-8' (length=5)
string '灏婃暚鐨刴ytest_0鎮ㄥソ锛佹偍鐨勮鍗?20120717-1504-6317宸叉敹鍒帮紝璇峰敖蹇€氳繃缃戜笂閾惰浠樻78.000鍏冿紝绁濇偍閲囪喘鎰夊揩锛佹湇鍔＄儹绾匡細4001156677' (length=159)

改变文件本身的编码也还是UTF-8

有人吗？在线等

------解决方案--------------------
试试加上
header("Content-Type:text/html;charset=utf-8");
------解决方案--------------------
error_reporting(E_ALL);

header("Content-Type:text/html;charset=utf-8");

是无BOM的UTF8吗?

有BOM可能是header失效