php readfile bad charset

Question

我有一个基于来自URL的file_id下载文件的php代码。一切都很好，但我在下载扩展名为.doc

的文件时遇到问题

这是我的代码，我做错了什么？

$ file = mysql_fetch_array（mysql_query（＆＃34; SELECT * FROM＆＃34; .sqlprefix。＆＃34;文件WHERE id =＆＃39;＆＃34;。$ _ GET [＆＃39; id＆＃ 39;]＆＃34;＆＃39;＆＃34））;     $ tmp = explode（＆＃34;。＆＃34;，$ file [＆＃39; url＆＃39;]）;     $ tmp = $ tmp [count（$ tmp）-1];     // $ tmp =＆＃34; doc＆＃34 ;;

switch ($tmp) {
    case "pdf": $ctype="application/pdf"; break;
    case "exe": $ctype="application/octet-stream"; break;
    case "zip": $ctype="application/zip"; break;
    case "docx": $ctype="application/vnd.openxmlformats-officedocument.wordprocessingml.document"; break;
    case "doc": $ctype="application/msword"; break;
    case "csv":
    case "xls":
    case "xlsx": $ctype="application/vnd.ms-excel"; break;
    case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
    case "gif": $ctype="image/gif"; break;
    case "png": $ctype="image/png"; break;
    case "jpeg":
    case "jpg": $ctype="image/jpg"; break;
    case "tif":
    case "tiff": $ctype="image/tiff"; break;
    case "psd": $ctype="image/psd"; break;
    case "bmp": $ctype="image/bmp"; break;
    case "ico": $ctype="image/vnd.microsoft.icon"; break;
    default: $ctype="application/force-download";
}

$baseName = basename($file['url_del']);
$fileSize = filesize($file['url_del']);
$url = $file['url_del'];

// $ctype = "application/msword";
// $baseName = "File name with spaces and diacritic ěščěšč.doc"
// $fileSize = "214016"
// $url = "./files/File name with spaces and diacritic ěščěšč.doc";


    header('Content-Description: File Transfer');
    header('Content-Type: '.$ctype);
    header('Content-Disposition: attachment; filename='.$baseName);
    header('Expires: 0');
    header('Pragma: public');
    header('Content-Length: '.$fileSize);
    readfile($url);
    exit;

在单词中下载文件后，我得到了这个。

我认为，问题必须是编码...在此处输入图像描述

Answer 1

对我来说也很可怕。 我在这里找到了slution：PHP readfile() causing corrupt file downloads

尝试将这行放在readfile（）之前：

//clean all levels of output buffering
while (ob_get_level()) {
    ob_end_clean();
}