$u_r_l->d()
Return the directory path relative to the server root if any, otherwise return
null
.
$u_r_l->d(void);
$u_r_l->d(string $join = '/');
Example:
$folder = strtr(ROOT, [
GROUND . DS => "",
DS => '/'
]);
$url = new URL('https://mecha-cms.com/foo/bar/1?baz=qux#asdf', '/' . $folder);
echo $url->d;