note 123207 added to function.ctype-digit

ctype_digit don't support negative value in string: <?php var_dump( ctype_digit('-10') ); //return bool(false) ?> Improved (and simplified) Tim Boormans code: <?php /** * Check input for existing only of digits (numbers) * @author Guilherme Nascimento <brcontainer@yahoo.com.br> * @param $digit * @return bool */ function is_digit($digit) { return preg_match('#^-?\d+$#', $digit) && is_int((int) $digit); } ---- Server IP: 208.43.231.9 Probable Submitter: 200.7.120.58 ---- Manual Page -- http://php.net/manual/en/function.ctype-digit.php Edit -- https://master.php.net/note/edit/123207 Del: integrated -- https://master.php.net/note/delete/123207/integrated Del: useless -- https://master.php.net/note/delete/123207/useless Del: bad code -- https://master.php.net/note/delete/123207/bad+code Del: spam -- https://master.php.net/note/delete/123207/spam Del: non-english -- https://master.php.net/note/delete/123207/non-english Del: in docs -- https://master.php.net/note/delete/123207/in+docs Del: other reasons-- https://master.php.net/note/delete/123207 Reject -- https://master.php.net/note/reject/123207 Search -- https://master.php.net/manage/user-notes.php