php readfile坏字符集

Question

我有一个php代码，用于根据URL中的file_id下载文件。所有的作品很好，但我有扩展名下载文件的问题.doc

这是我的代码，什么即时通讯做错了？

$ file = mysql_fetch_array（mysql_query（“SELECT * FROM”.sqlprefix。“files WHERE id ='”。$ _ GET ['id']。“'”））; $ tmp = explode（“。”，$ file ['url']）; $ tmp = $ tmp [count（$ tmp）-1]; // $ tmp =“doc”;

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; 

下载文件后，我得到这个。

我认为，这个问题必须在编码......在这里输入的形象描述

Answer 1

这是可怕的对我来说太。 我发现这里的slution：PHP readfile() causing corrupt file downloads

尝试把ReadFile的在此之前线（）：

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