note 86634 added to function.empty

By definition empty( mixed* $var ) cannot accept all types. For example, define constants will cause error if you try to test them. * mixed indicates that a parameter may accept multiple (but not necessarily all) types. This will produce error: define("CONSTANT", "Hello world."); var_dump( empty( CONSTANT ) ); At first, this seemed to me very legal, but then I realized the fact that it just doesn't work. ---- Server IP: 219.94.145.73 Probable Submitter: 219.16.104.28 ---- Manual Page -- http://www.php.net/manual/en/function.empty.php Edit -- https://master.php.net/note/edit/86634 Del: integrated -- https://master.php.net/note/delete/86634/integrated Del: useless -- https://master.php.net/note/delete/86634/useless Del: bad code -- https://master.php.net/note/delete/86634/bad+code Del: spam -- https://master.php.net/note/delete/86634/spam Del: non-english -- https://master.php.net/note/delete/86634/non-english Del: in docs -- https://master.php.net/note/delete/86634/in+docs Del: other reasons-- https://master.php.net/note/delete/86634 Reject -- https://master.php.net/note/reject/86634 Search -- https://master.php.net/manage/user-notes.php