Ok, so right now I've got this URL, which works perfectly:
$html_string = file_get_contents('https://www.123.com/' . $_GET["ticket"]);
What I want to do is to insert $_GET between the URL.
Here's what I mean:
('https://www.123.com/' . $_GET["ticket"] /url-continues-here);
I have tried everything, but can't find any solution how to do it without an error.