note 117344 added to function.is-null

In PHP 7 (phpng), is_null is actually marginally faster than ===, although the performance difference between the two is far smaller. PHP 5.5.9 is_null - float(2.2381200790405) === - float(1.0024659633636) === faster by ~100ns per call PHP 7.0.0-dev (built: May 19 2015 10:16:06) is_null - float(1.4121870994568) === - float(1.4577329158783) is_null faster by ~5ns per call ---- Server IP: 149.255.111.133 Probable Submitter: 197.225.192.215 ---- Manual Page -- http://php.net/manual/en/function.is-null.php Edit -- https://master.php.net/note/edit/117344 Del: integrated -- https://master.php.net/note/delete/117344/integrated Del: useless -- https://master.php.net/note/delete/117344/useless Del: bad code -- https://master.php.net/note/delete/117344/bad+code Del: spam -- https://master.php.net/note/delete/117344/spam Del: non-english -- https://master.php.net/note/delete/117344/non-english Del: in docs -- https://master.php.net/note/delete/117344/in+docs Del: other reasons-- https://master.php.net/note/delete/117344 Reject -- https://master.php.net/note/reject/117344 Search -- https://master.php.net/manage/user-notes.php