note 116924 added to filter.filters.validate

It's good to remember that using filter_var is primarily for filtering input values when doing boolean logic comparisons. Take the following: $value = "12"; if(filter_var($value, FILTER_VALIDATE_INT)) { // validated as an int } The above works as intended, except when $value = "0". In which case filter_var returns a 0, aka false when used as a boolean. For the correct behavior, do a zero check. $value = " 0 "; $filtered = filter_var($value, FILTER_VALIDATE_INT); if($filtered || $filtered === 0) { // validated as an int } ---- Server IP: 72.52.91.14 Probable Submitter: 71.252.128.180 ---- Manual Page -- http://php.net/manual/en/filter.filters.validate.php Edit -- https://master.php.net/note/edit/116924 Del: integrated -- https://master.php.net/note/delete/116924/integrated Del: useless -- https://master.php.net/note/delete/116924/useless Del: bad code -- https://master.php.net/note/delete/116924/bad+code Del: spam -- https://master.php.net/note/delete/116924/spam Del: non-english -- https://master.php.net/note/delete/116924/non-english Del: in docs -- https://master.php.net/note/delete/116924/in+docs Del: other reasons-- https://master.php.net/note/delete/116924 Reject -- https://master.php.net/note/reject/116924 Search -- https://master.php.net/manage/user-notes.php