note 117310 added to function.is-nan

I would use is_numeric() instead of ctype_digit() if you cannot be 100% sure what data type the string will be. Example from the docs: <?php $numeric_string = '42'; $integer = 42; ctype_digit($numeric_string); // true ctype_digit($integer); // false (ASCII 42 is the * character) is_numeric($numeric_string); // true is_numeric($integer); // true ?> ---- Server IP: 72.52.91.14 Probable Submitter: 116.12.250.1 ---- Manual Page -- http://php.net/manual/en/function.is-nan.php Edit -- https://master.php.net/note/edit/117310 Del: integrated -- https://master.php.net/note/delete/117310/integrated Del: useless -- https://master.php.net/note/delete/117310/useless Del: bad code -- https://master.php.net/note/delete/117310/bad+code Del: spam -- https://master.php.net/note/delete/117310/spam Del: non-english -- https://master.php.net/note/delete/117310/non-english Del: in docs -- https://master.php.net/note/delete/117310/in+docs Del: other reasons-- https://master.php.net/note/delete/117310 Reject -- https://master.php.net/note/reject/117310 Search -- https://master.php.net/manage/user-notes.php