php上传后显示中文乱码?急!在线等!!

Question

代码:
<?php $uploaddir = '/var/www/uploads/';
$uploadfile = $uploaddir. $_FILES['userfile']['name'];
print "<pre>";
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
print "上传成功!\n";
print_r($_FILES);
}else {
print "上传失败!\n";
print_r($_FILES);
}
print "</pre>";?>
传后提示信息:编码是:gb2312,如果手动选择utf_8一切正常.这是怎么回事呢?
涓婁紶鎴愬姛!
Array
(
    [userfile] => Array
        (
            [name] => putty.exe
            [type] => application/octet-stream
            [tmp_name] => /tmp/phpI4a99g
            [error] => 0
            [size] => 454656
        ))

Answer 1

这是改为utf8的显示:上传成功!
Array
(
    [userfile] => Array
        (
            [name] => putty.exe
            [type] => application/octet-stream
            [tmp_name] => /tmp/phpbfyGla
            [error] => 0
            [size] => 454656
        ))