note 85215 added to function.empty

To add on to what anon said, what's happening in john_jian's example seems unusual because we don't see the implicit typecasting going on behind the scenes. What's really happening is: $a = ''; $b = 0; $c = '0'; (int)$a == $b -> true, because any string that's not a number gets converted to 0 $b==(int)$c -> true, because the int in the string gets converted and $a==$c -> false, because they're being compared as strings, rather than integers. (int)$a==(int)$c should return true, however. Note: I don't remember if PHP even *has* typecasting, much less if this is the correct syntax. I'm just using something for the sake of examples. ---- Server IP: 64.71.164.2 Probable Submitter: 208.85.203.242 ---- Manual Page -- http://www.php.net/manual/en/function.empty.php Edit -- https://master.php.net/note/edit/85215 Del: integrated -- https://master.php.net/note/delete/85215/integrated Del: useless -- https://master.php.net/note/delete/85215/useless Del: bad code -- https://master.php.net/note/delete/85215/bad+code Del: spam -- https://master.php.net/note/delete/85215/spam Del: non-english -- https://master.php.net/note/delete/85215/non-english Del: in docs -- https://master.php.net/note/delete/85215/in+docs Del: other reasons-- https://master.php.net/note/delete/85215 Reject -- https://master.php.net/note/reject/85215 Search -- https://master.php.net/manage/user-notes.php