为什么 Response::download() 在 Laravel 4 中不会下载除 PDF 之外的任何内容？
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Why Response::download() won't download anything except PDF in Laravel 4?
提问by Harry Martland
This is the line of code which is giving me sick.
这是让我生病的代码行。
return Response::download(storage_path().'/file/' . $file->id . "." . $file->file->extension);
The files are uploaded and given an id which they are saved under e.g. 25.pdfthis works fine if the file is a PDF but doesn't for anything else e.g. PNG. we upgraded from Laravel 3 to 4 to try to overcome this problem.
文件被上传并给出一个 id，它们被保存在例如，25.pdf如果文件是 PDF，这可以正常工作，但不适用于其他任何东西，例如 PNG。我们从 Laravel 3 升级到 4 试图克服这个问题。
Any ideas?
有任何想法吗？
EDIT: I just uploaded a test text file with the word test in it once I uploaded it and then downloaded it I opened it, there were 3 blank lines and the letters te!!!!!I downloaded it through sftp and the file is correctly stored on the server so it is defiantly the download procedure!
编辑：我刚刚上传了一个测试文本文件，其中包含 test 这个词，然后我打开它，有 3 个空行和字母 te!!!! 我通过 sftp 下载了它，文件是正确存储在服务器上，因此它绝对是下载过程！
回答by Harry Martland
I used this function instead of any of the Laravel stuff. :/ (Stolen from other places around the web)
我使用这个函数而不是任何 Laravel 的东西。：/（从网络其他地方偷来的）
public static function big_download($path, $name = null, array $headers = array()) {
if (is_null($name))
$name = basename($path);
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$pathParts = pathinfo($path);
// Prepare the headers
$headers = array_merge(array(
'Content-Description' => 'File Transfer',
'Content-Type' => finfo_file($finfo, $path),
'Content-Transfer-Encoding' => 'binary',
'Expires' => 0,
'Cache-Control' => 'must-revalidate, post-check=0, pre-check=0',
'Pragma' => 'public',
'Content-Length' => File::size($path),
'Content-Disposition' => 'inline; filename="' . $name . '.' . $pathParts['extension'] . '"'
), $headers);
finfo_close($finfo);
$response = new Symfony\Component\HttpFoundation\Response('', 200, $headers);
// If there's a session we should save it now
if (Config::get('session.driver') !== '') {
Session::save();
}
// Below is from http://uk1.php.net/manual/en/function.fpassthru.php comments
session_write_close();
ob_end_clean();
$response->sendHeaders();
if ($file = fopen($path, 'rb')) {
while (!feof($file) and (connection_status() == 0)) {
print(fread($file, 1024 * 8));
flush();
}
fclose($file);
}
// Finish off, like Laravel would
Event::fire('laravel.done', array($response));
$response->foundation->finish();
exit;
}
回答by star18bit
One may ask, How can i get path to file in laravel?
有人可能会问，如何在laravel 中获取文件路径？
Path to file can be achieved like:
文件路径可以这样实现：
public function getDownload(){
$file = public_path()."/downloads/info.pdf";
$headers = array('Content-Type: application/pdf',);
return Response::download($file, 'info.pdf',$headers);
}
function will download file from : 'project/public/download' folder.
函数将从：'project/public/download' 文件夹下载文件。
(don't forget to set-up routes and controller by your self)
（不要忘记自己设置路由和控制器）
回答by Shaahin Ashayeri
If you are using Windows, go to php.ini and then uncomment "extension=php_fileinfo.dll" section and then use this code:
如果您使用的是 Windows，请转到 php.ini，然后取消注释“ extension=php_fileinfo.dll”部分，然后使用以下代码：
Route::get('file/download', function()
{
$file = public_path(). '\download\myfile.png';
return Response::download($file);
});
回答by Laurence
Try including the MIME in the return:
尝试在返回中包含 MIME：
$file = storage_path().'/file/' . $file->id . "." . $file->file->extension;
return Response::download($file, 200, array('content-type' => 'image/png'));
