Setting session.use_only_cookies to 1 should disable use of the PHPSESSID query parameter. Enabling session.use_only_cookies protects against session hijacking when people share links (which is why the default is 1).
Also, when session.use_only_cookies is not enabled, all the URLs on the forum are unique each time a web spider accesses the site (which you can see on archive.org).
Looks like SMF is specifically disabling session.use_only_cookies, so this is probably what needs to change. (See also: an issue on GitHub about it.)
Also, when session.use_only_cookies is not enabled, all the URLs on the forum are unique each time a web spider accesses the site (which you can see on archive.org).
Looks like SMF is specifically disabling session.use_only_cookies, so this is probably what needs to change. (See also: an issue on GitHub about it.)