laravel文件上传

        $file = request::file('photo');//文件
        $name = input::get('name');//其他属性值
        $allowed_extensions = ["png", "jpg", "gif"];
        if ($file->getclientoriginalextension() && !in_array($file->getclientoriginalextension(), $allowed_extensions)) {
            return ['error' => 'you may only upload png, jpg or gif.'];
        }
        $destinationpath = 'storage/uploads/'; //public 文件夹下面建 storage/uploads 文件夹
        $extension = $file->getclientoriginalextension();
        $filename = str_random(10).'.'.$extension;
        $file->move($destinationpath, $filename);
        $filepath = asset($destinationpath.$filename);
        $info=db::insert('insert into photo(pname,photo) values (?,?)',[$name,$filepath]);//入库
          if($info){
           return redirect('/show');
          }else{
              echo "no";
          }