How to break a check?

Question

Barcodes

Good day. Guys, such a situation, I bought a barcode reader and decided to check the work on the receipt. The check gave me a link to process a php request after scanning. The question is, where do you put the link?

// приблизительно, такой get-запрос
t=*&s=*.*&fn=*&i=*&fp=*&n=*

- I need a reader to systematize the piece of iron by code. It just became interesting, all of a sudden I can break through expenses and make them into my internal systems.