php 的文件名是乱码

setlocale(LC_ALL, 'zh_CN.utf8'); // 设置为UTF-8编码

$filename = '测试文件.txt';
$encodedFilename = mb_convert_encoding($filename, 'UTF-8', 'auto');

$path = '/path/to/测试文件.txt';
$filename = basename($path);
$directory = dirname($path);

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

<?php
setlocale(LC_ALL, 'zh_CN.utf8'); // 设置为UTF-8编码

$filename = '测试文件.txt';
$encodedFilename = mb_convert_encoding($filename, 'UTF-8', 'auto');

echo "Original filename: " . $filename . "\n";
echo "Encoded filename: " . $encodedFilename . "\n";

$path = '/path/to/测试文件.txt';
$filename = basename($path);
$directory = dirname($path);

echo "Filename: " . $filename . "\n";
echo "Directory: " . $directory . "\n";
?>