Personally I think http://www.php.net/manual/en/function.mysqli-close.php is one of the most confusing manual pages I have seen to date,
MySQLi docs are a bit confusing... consider the mysqli close:
Here's how livedocs outputs it, looks a bit better huh? Not sure
what version of livedocs this is (or how old these docs are) but it's the only online livedocs I could find:
http://livedocs.coggeshall.org/en/function.mysqli-close.html
The dir class also looks a lot better here:
http://livedocs.coggeshall.org/en/class.dir.html
Oh yes, much better...
All the more reason to bling livedocs
// Tom
