Whats is the code output $_get Page?

Answer 1

your question is not understood

Answer 2

if the sample page is like this "addtocart.php/id=10"

echo $GET [id];
then the output will be
10

Answer 3

$_GET and $_POST are used to collect form data.
when you use GET method then the data is passed in URL. like Google.com/search?q=get