[php]
header('Content-type: text/vnd.wap.wml; charset=utf-8');
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
echo "\n";
echo "\n";
echo "\n";
$r = iconv("gb2312","utf-8","测试内容123");
echo $r;

echo "\n";
[/php]

用模拟器看是乱码
哪里搞错了？
有没详细一点的介绍编码的文章？