note 80433 added to language.types.boolean

PHP does not break any rules with the values of true and false. The value false is not a constant for the number 0, it is a boolean value that indicates false. The value true is also not a constant for 1, it is a special boolean value that indicates true. It just happens to cast to integer 1 when you print it or use it in an expression, but it's not the same as a constant for the integer value 1 and you shouldn't use it as one. Notice what it says at the top of the page: A boolean expresses a truth value. It does not say "a boolean expresses a 0 or 1". It's true that symbolic constants are specifically designed to always and only reference their constant value. But booleans are not symbolic constants, they are values. If you're trying to add 2 boolean values you might have other problems in your application. ---- Server IP: 69.147.83.197 Probable Submitter: 72.25.179.134 ---- Manual Page -- http://www.php.net/manual/en/language.types.boolean.php Edit -- https://master.php.net/note/edit/80433 Del: integrated -- https://master.php.net/note/delete/80433/integrated Del: useless -- https://master.php.net/note/delete/80433/useless Del: bad code -- https://master.php.net/note/delete/80433/bad+code Del: spam -- https://master.php.net/note/delete/80433/spam Del: non-english -- https://master.php.net/note/delete/80433/non-english Del: in docs -- https://master.php.net/note/delete/80433/in+docs Del: other reasons-- https://master.php.net/note/delete/80433 Reject -- https://master.php.net/note/reject/80433 Search -- https://master.php.net/manage/user-notes.php