Req #75229 [Opn]: FILTER_VALIDATE_INT should allow 0 prefixes

Edit report at https://bugs.php.net/bug.php?id=75229&edit=1 ID: 75229 Updated by: cmb@php.net Reported by: thflori at gmail dot com Summary: FILTER_VALIDATE_INT should allow 0 prefixes Status: Open Type: Feature/Change Request Package: Filter related Operating System: Linux PHP Version: 7.1.9 Block user comment: N Private report: N New Comment: > This filter is really for properly formatted numbers. But FILTER_VALIDATE_FLOAT is not? (<https://3v4l.org/OC3UQ>) Previous Comments: ------------------------------------------------------------------------ [2017-09-19 16:15:36] derick@php.net I don't believe we should change that. This filter is really for properly formatted numbers. ------------------------------------------------------------------------ [2017-09-19 14:53:58] thflori at gmail dot com Description: ------------ Someone defined octal numbers are prefixed with a 0 but there is no mathematical theory that says a number with one or more 0 in front is not a number. When we now use filter_var to filter user input we have to tell the user that a number with 0 in front is not an integer. Or we use a more generic way like reg exp /^\d+$/ but I thought the filter_var is made for this propose. Currently the problem is that users enter minutes and seconds with zeroes in front. It should indeed not be a float so to filter for integer is correct. Test script: --------------- var_dump(filter_var('03', FILTER_VALIDATE_INT)); var_dump(filter_var('+08', FILTER_VALIDATE_INT)); var_dump(filter_var('-010', FILTER_VALIDATE_INT)); Expected result: ---------------- int(3) int(8) int(-10) Actual result: -------------- false false false ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75229&edit=1