note 108381 added to filter.filters.validate

@Tom If you read the notes correctly for the first row in the table above, you can see that the documentation reads 'If FILTER_NULL_ON_FAILURE is set, FALSE is returned only for "0", "false", "off", "no", and "", and NULL is returned for all non-boolean values.' In your example, the last piece of that sentence is relevant because you are not passing a variable at all you are passing a value. Therefore there is no variable passed and as such the non-existent variable is not a valid boolean value. This is the correct behavior. Variables are references to values in memory. ---- Server IP: 64.71.164.2 Probable Submitter: 67.169.118.253 ---- Manual Page -- http://www.php.net/manual/en/filter.filters.validate.php Edit -- https://master.php.net/note/edit/108381 Del: integrated -- https://master.php.net/note/delete/108381/integrated Del: useless -- https://master.php.net/note/delete/108381/useless Del: bad code -- https://master.php.net/note/delete/108381/bad+code Del: spam -- https://master.php.net/note/delete/108381/spam Del: non-english -- https://master.php.net/note/delete/108381/non-english Del: in docs -- https://master.php.net/note/delete/108381/in+docs Del: other reasons-- https://master.php.net/note/delete/108381 Reject -- https://master.php.net/note/reject/108381 Search -- https://master.php.net/manage/user-notes.php