Upload File Laravel

uploadFile.php

<?php

public function uploadFile(Request $request)
    {
        $file = $request->file;
        $extension = $file->getClientOriginalExtension();
        $file_name = md5(time()).".".$extension;
        $id_user = $request->id;

        if(!empty($file)) {
            // Update image DB
            $user = Users::find($id_user);
            $user->avatar = $file_name;
            $user->save();

            // Save image original
            $destinationPath = public_path() . '/uploads/';
            $success = $file->move($destinationPath, $file_name);

            // Resize
            $sizes = [
                [
                    "width" => "48",
                    "height" => "48"
                ],
                [
                    "width" => "128",
                    "height" => "128"
                ],
                [
                    "width" => "256",
                    "height" => "256"
                ]
            ];
            foreach($sizes as $size){
                $destination = public_path() . '/uploads/'.$size['width'].'_'.$size['height'].'/';

                if (!is_dir($destination)) {
                    // dir doesn't exist, make it
                    mkdir($destination, 0755, true);
                }

                // THEN RESIZE IT
                $returnData = $destinationPath.$file_name;
                $image = Image::make(file_get_contents($returnData));
                $image = $image->resize($size['width'],$size['height'])->save($destination.$file_name);
            }
        }