Printing file on server using php

Question

How can i print a file that exists on server using my printer in php?

EDIT
I am sorry if i didn't state my question clearly.
My question is that if i want to print something, how can i do it using PHP?
Example:
Assume that i have a website where people buy different products. When a person pays, i generate an invoice for that person. I want the person to be able to print his/her invoice. I want to provide the user an option to print his/her invoice.
How can i do that in php?

Answer 1

You need Javascript for this. Generate a page with an invoice with PHP and add a button which calls window.print();
Here's an example:
https://www.w3schools.com/jsref/met_win_print.asp

Answer 2

Can you please clarify your question?

Answer 3

Edited my question