how to dowload file from laravel blade

You should direct towards a link and then return the file in response

Check here: https://laravel.com/docs/5.8/responses#file-downloads

sorry my past question by mistake i paste

@mushood ok i change but when i click same issue Failed - Server problem like error file not found

public function downloadfile($id)
    {
        $file = Multipledocument::where('doc_id',$id)->first();
        // return $file;
        $myfile = public_path('PG/doc/',$file->id,'/',$file->multiple_doc);
        return response()->download($myfile);
    }

blade file

<a href="{{route('downloadfile',$docs->pg_id)}}" download="">            
        <img src="{{asset('admin/assets/media/users/doc.png')}}" height="100px" width="100px">
    </a>

is the routing correct? what di you have in web.php?

first check the file path

$myfile = public_path('PG/doc/',$file->id,'/',$file->multiple_doc);
dd($myfile);

Then check that the file is actually there or adjust your path accordingly

@mushood ok i check file path is valid so how can my mistake

"/opt/lampp/htdocs/pg_final/pgmanagment/public/PG/doc/"

is it not finding the path to your controller method, or not finding the file?

Its simple to check if it reaches your controller....

@snapey so how can i download correct path file

This

"/opt/lampp/htdocs/pg_final/pgmanagment/public/PG/doc/"

does not look like a full file path? It seems to be missing any filename

@snapey ok sir i check but my path was correct no any file missing

"/opt/lampp/htdocs/pg_final/pgmanagment/public/PG/doc/"     

my controller file may be my code was right or any line missing

public function downloadfile($id)
    {
        $file = Multipledocument::where('doc_id',$id)->first();
        // return $file;
        $myfile = public_path('PG/doc/',$file->id,'/',$file->multiple_doc);
        dd($myfile);
        return response()->download($myfile);
    }

here is my blade file

<a href="{{route('downloadfile',$docs->id)}}">            
        <img src="{{asset('admin/assets/media/users/doc.png')}}" height="100px" width="100px">
</a>

@mushood @snapey thank you sir i understand my mistake and solved by myself

actually mistake was i use , sign

$myfile = public_path('PG/doc/',$file->id,'/',$file->multiple_doc);

now

$myfile = public_path('PG/doc/'.$file->id.'/'.$file->multiple_doc);

run perfectally thanks