Question

Ok, so I have let’s say this page http://mypage.com/index.php?id=something. I want to have in this page the link which would go to the http://mypage.com/index.php?id=something&sub=1. And to do that I have to add a href to my index.php file like this
echo '<a href="index.php?id=something&sub=1">go here</a>';. Is it possible to do this thing shorter? I mean just adding sub=1 somehow? Thanks.

Answer 1

There is PHP command called http_build_url that is specifically for your type of use case.

This is how you would use it for your example:

http_build_url($url_string,
    array(
        "query" => "sub=1"
    ),
    HTTP_URL_JOIN_QUERY
);