This would be useful say if you have a file you just want to update in one place but use it on multiple domains. I’ve tested it and it works great. Helped me out a lot for a project I was working on.

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "");
curl_setopt($ch, CURLOPT_HEADER, 0);

Replace with the file you want to grab