Req #23158 [Opn->Bgs]: a new digit checker

Edit report at http://bugs.php.net/bug.php?id=23158&edit=1 ID: 23158 Updated by: jani@php.net Reported by: melkor at dance dot student dot utwente dot nl Summary: a new digit checker -Status: Open +Status: Bogus Type: Feature/Change Request -Package: Feature/Change Request +Package: *General Issues Operating System: linux PHP Version: 5CVS-2003-04-10 (dev) Block user comment: N Private report: N New Comment: See above. Previous Comments: ------------------------------------------------------------------------ [2007-12-31 22:49:29] michael at chunkycow dot com dot au This is bogus, ctype_digit(4500) returns true. ------------------------------------------------------------------------ [2003-04-10 17:31:15] melkor at dance dot student dot utwente dot nl For ID's in databases, a simple is_digit($mixed) check would be nice. is_numeric($mixed) also accepts 1.0E10 and such values, which are not valid for integer database IDs. ctype_digit($string) returns false for any integer it gets, because ctype_digit(4500) gets translated to isdigit(4500) which of course is not a valid ascii character at all. This might seem a little far fetched, but lots and lots of code uses is_numeric checks where they should not. I do this too, because otherwise I need 2 checks (is_integer($var) || ctype_digit($var)).. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=23158&edit=1