File upload is an essential aspect of any project. Given this importance, it is surprising that many developers face challenges of adding file upload feature to their projects. In particular, developers are unsure about how to upload and validate files. If you want to upload big files you should use streams. Here’s the code to do it:

I suggest you to follow this article steps:

https://www.cloudways.com/blog/laravel-multiple-files-images-upload/

Thank You for that link. But, I want to use it with laravel backpack and not custom blade file

i haven't seen backpack before, but this pops-out for me in here:

public function setImageAttribute($value)  
{  
  $attribute_name = "image";  
  $disk = "public";  
  $destination_path = "/uploads";  
  $this->uploadFileToDisk($value, $attribute_name, $disk, $destination_path);  
}

You use setImageAttribute and set the name to image $attribute_name = "image";, shouldn't it be thumbnail_image?

public function setthumbnail_imageAttribute($value)
    {
        $attribute_name = "thumbnail_image";
        $disk = "public";
        $destination_path = "uploads";

        $this->uploadFileToDisk($value, $attribute_name, $disk, $destination_path);
    }

Ok. so this one is saving but not the filename

It is saving this D:\xampp\tmp\phpBC6B.tmp filename being Admissions.jpg

just shooting from the hip, have you tried setThumbnailImageAttribute($value) instead of setthumbnail_imageAttribute($value)?

Omg. You are Amazing.. It is now entering the function but saving the filename incorrect.

public function setThumbnailImageAttribute($value) {

        $image=$value;
        $input['thumbnail_image'] = time().'.'.$image->getClientOriginalExtension();
        $img = \Image::make($image->getRealPath());

        $destinationPath = public_path('/uploads/product');
        $img->resize(750, 450, function ($constraint) {
        $constraint->aspectRatio();
        })->save($destinationPath.'/'.$input['thumbnail_image']);

        $destinationPath = public_path('/uploads/product');

        $img->resize(100, 100, function ($constraint) {
        $constraint->aspectRatio();
        })->save($destinationPath.'/'.$input['thumbnail_image']);

        $image->move($destinationPath, $input['thumbnail_image']);
        $this->attributes['thumbnail_image'] = strtolower($input['thumbnail_image']);

    }

Please help

Found a solution. Many thanks

public function setThumbnailImageAttribute($value) {

        $image=$value;
        $input['thumbnail_image'] = $image->getClientOriginalName();
        $img = \Image::make($image->getRealPath());

        $destinationPath = public_path('/uploads/thumbnailImages');
        $img->resize(750, 450, function ($constraint) {
        $constraint->aspectRatio();
        })->save($destinationPath.'/'.$input['thumbnail_image']);

        $destinationPath = public_path('/uploads/thumbnailImages');

        $img->resize(100, 100, function ($constraint) {
        $constraint->aspectRatio();
        })->save($destinationPath.'/'.$input['thumbnail_image']);

        $image->move($destinationPath, $input['thumbnail_image']);
        $this->attributes['thumbnail_image'] = $input['thumbnail_image'];

    }

Found Simple Solution:

public function setImageAttribute($value)
{
    if ($value) {
        // destination folder to store image
        $prefix = 'images/';

        // Delete the previous image if exists (for Update Operation)
        if ($this->image) {
            $previousImagePath = public_path($prefix) . $this->image;
            if (file_exists($previousImagePath)) {
                unlink($previousImagePath);
            }
        }

        $fileName = time() . '_' . uniqid() . '.' . $value->getClientOriginalExtension();
        $value->move(public_path($prefix), $fileName);
        $this->attributes['image'] = $fileName;
    }
}