PHP returning specific data from another class - php

Question

PHP question on how to return a specific value from another class in a seperate file. So I have created a uploader class to handle and store files uploaded by users. But trying to connect the dots back to the orginal request which if for lets say a specific page - how can i pass a specific value back after I set the values in the other file... code example below.
Thanks Citti
//file 1 //store page request
public function store()
{
//pass the uploaded file to be uploaded and stored
$this->uploader->upload(RequestFile::file('assetfile'));
$page = new Page;
$page->user_id = $asset->user()->id;
$page->assetfile = $file->user_id; <--- ? see below
$page->save();
}
//file 2 //store physical file and create record in DB
class Uploader {
public function upload($file)
{
$extension = $file->getClientOriginalExtension();
$string = str_random(30);
$uploadName = $string . '.' . $extension;
$destinationPath = storage_path() . '/app/uploads/' . Request::user()->id;
$file->move($destinationPath, $uploadName);
$file = new File;
$file->user_id = $asset->user()->id;
$file->assetfile = $uploadId;
$file->save();
$return $file->user_id; ?!?

Answer 1

What you could try is session variables?
Be sure to start sessions on both file 1 and file 2 via:
session_start();
Now, in your upload function, you can declare a session variable
$_SESSION['specificValue'] = $valueSetInUpload;
Now, back on your first file you can access the variable inside of your store function with
$valueSetInUpload = $_SESSION['specificValue'];
I believe this is what you are asking, but I could be wrong.

Answer 2

To return values from a function, you use "return value" and you just have to store that to a variable or output it. Something like:
public function store() {
$fileId = $this->uploader->upload(RequestFile::file('assetfile'));
$page = new Page;
$page->user_id = $asset->user()->id;
$page->assetfile = $fileId;
$page->save();
}
//file 2 //store physical file and create record in DB
class Uploader {
public function upload($file) {
$extension = $file->getClientOriginalExtension();
$string = str_random(30);
$uploadName = $string . '.' . $extension;
$destinationPath = storage_path() . '/app/uploads/' . Request::user()->id;
$file->move($destinationPath, $uploadName);
$file = new File;
$file->user_id = $asset->user()->id;
$file->assetfile = $uploadId;
$file->save();
return $file->user_id;
}
}