I would use Fasades: http://laravel.com/docs/master/facades

Please don't use a facade for this. Instead you should see if you can create a trait. Since you are going to be reusing the functions within a class, this makes an easy way to share similar things around the codebase.

If they don't really fit into a trait then you can make a helper class to inject around (although this can be considered a code smell) or you can just register the functions as global functions and call them from anywhere you want without issue.

Traits are meant to be additional functionality on a model, not a reusable function.

What is the difference between registering global function and a fasade? Globals will pollute global namespace, which is not a great idea.

Thanks for the reply.

How do you register as a global function?

thanks

Take a look: http://stackoverflow.com/questions/4458837/how-to-define-global-functions-in-php

The second answer (the one with 9 upvotes) is interesting.

In my opinion, for reusable code you should try separating your logic into commands.

https://laracasts.com/lessons/laravel-5-commands

Asuming you have a "HelloCommand" you can call it from any controller/ artisan command using the DispachesCommand Trait

$this->dispatch(new HelloCommand($argument1, $argument2...));

You can throw events from a command (if you need some more stuff later)

https://laracasts.com/lessons/laravel-5-events

Have fun!