htmlspecialchars – how to use it ith curl?

I wanna use it with Curl to get the customer name from the link
(here is curl cmd)

curl -F 'file=@/home/jbaudoux/logbackup-infitarif (3).gz'  http://pc-arp?customer=Name

I use it like:

$foldername = htmlspecialchars($GET["customer"]) . '';

Any clue of why it’s broke? (It’s error when run for the $GET)

>Solution :

Ofc u miss type the $_GET that’s just that’s.

Use:

$foldername = htmlspecialchars($_GET["customer"]);