Laravel? ???? ?? ??? ? ???? ??? ???? ??
Laravel? ? ??????? ?? ?? ????? ??? ? ??? ??? ??? ??? ???? ?? ?? PHP ? ????????. ????? ???? ?? ? ??? ?? ??? ? ???????. ? ???? Laravel? ???? ?? ??? ? ???? ??? ???? ??? ???? ???? ?? ??? ?????.

1. ?? ???
   ?? ???? ?? ??? ??? ????? ???? ?? ????. Laravel??? ?? ??? ???? ???? ?? ??? ??? ??? ? ????. ??? ?? ???? ???? ?????.

1??: ?? ??? ?? ???
?? ??? ??? ?? ??? ??? ???? ???. HTML

<input type="file" name="file">
<button type="submit">上傳</button>

2??: ?? ??? ?? ??
?? ?? Laravel ?????? ?? ??? ??? ?????. ?? ?? ??? ???? ???? ???.

use IlluminateHttpRequest

?? ?? Request ??? ?? ???? ??? ??? ??? ?????. ??? ??? ????.

public ?? upload(Request $request)
{

if ($request->hasFile('file')) {
    $file = $request->file('file');
    $filename = $file->getClientOriginalName();
    $file->move(public_path('uploads'), $filename);
}

}

? ????? ?? $request->hasFile() ???? ?? ???? ??? ??? ?????. ??? ????? $request->file() ???? ?? ?? ??? ????. ?? ?? getClientOriginalName() ???? ?? ?? ?? ??? ???? move() ???? ?? ??? ??? ????? ??? ??? ? ????.

2. ?? ????
   ?? ????? ???? ??? ?????? ??? ???? ?? ????. Laravel??? ???? ????? ?? ?? ???? ??? ??? ? ????. ??? ?? ????? ???? ?????.

1??: ???? ?? ??
??, Routes/web.php ??? ???? ??? ???? ???. ?? ??? ????:

Route::get('/download/{filename}', 'DownloadController@download');

? ????? /download/{filename} ??? ?????. ??? {filename }? ??? ???? ?? ??? ?????. ??? DownloadController ????? download() ???? ?????.

2??: ???? ???? ??
?? ?? DownloadController ????? ???? ???. ?? ??? ?? ????? ????? ??? ? ????:

php artisan make:controller DownloadController

?? ?? DownloadController ?????? download() ???? ?????. ???? ??? ??? ????:

public ?? ????( $filename)
{

$file = public_path('uploads/' . $filename);
return response()->download($file);

}

? ????? ?? public_path() ???? ?? ??? ?? ??? ?????. ?? ?? response()->download() ???? ?? ????? ? ??? ??? ?????? ?????.

3. ?? ?? ??
   ?? ??? ?? ??? ? ???? ??? ???? ?????. ??? ?? ?? ?????.

// Route
Route::get('/download/{filename}', 'DownloadController@download')
Route::post('/upload', 'UploadController@ upload ');

// UploadController.php

namespace AppHttpControllers;

use IlluminateHttpRequest;

class UploadController ?? Controller
{

public function upload(Request $request)
{
    if ($request->hasFile('file')) {
        $file = $request->file('file');
        $filename = $file->getClientOriginalName();
        $file->move(public_path('uploads'), $filename);
    }
    
    return redirect('/');
}

}

// DownloadController.php

namespace AppHttpControllers;

class DownloadController? Controller? ?????
{

public function download($filename)
{
    $file = public_path('uploads/' . $filename);
    return response()->download($file);
}

}

? ????? ?? ??? ? ???? ??? ???? ?? UploadController? DownloadController?? ? ?? ????? ??????. ?? ?? ?? ?? ??? ? ???? ??? ???? ? ?? ?? /upload ? /download/{filename}? ??????. ?? ??? ?? Laravel?? ?? ??? ? ???? ??? ??? ? ????.

??
? ??? ?? Laravel? ???? ?? ??? ? ???? ??? ??? ? ????. ?? ???? ???? ??? ???? ?? ??? ??? ???? ?? ????? ?? ????? ?? ??? ??? ???? ??, ??? ? ????? ?? ???? ??? ???? ??? ?????? ???? ???. ????? ?? . ??? ??? ?? Laravel?? ?? ??? ? ???? ??? ?? ??? ? ????.

? ??? Laravel? ???? ?? ??? ? ???? ??? ???? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!