Bug #66682 [Ana]: FILTER_VALIDATE_INT fails on strings starting with zero.

Edit report at https://bugs.php.net/bug.php?id=66682&edit=1 ID: 66682 Updated by: yohgaki@php.net Reported by: alex dot howansky at gmail dot com Summary: FILTER_VALIDATE_INT fails on strings starting with zero. Status: Analyzed Type: Bug Package: Filter related Operating System: Linux 2.6 64 PHP Version: 5.5.9 Block user comment: N Private report: N New Comment: php_filter_parse_int() does not allow leading 0 Previous Comments: ------------------------------------------------------------------------ [2014-02-16 06:15:48] yohgaki@php.net This is because php_fileter_int() treats leading 0 as hex/octal numbers. I'm not sure which one int or float should be fixed. Possible fix is https://github.com/yohgaki/php-src/compare/PHP-5.4-bug66682 ------------------------------------------------------------------------ [2014-02-10 05:40:33] alex dot howansky at gmail dot com Description: ------------ FILTER_VALIDATE_INT fails on '01'. I can understand that opinions might be divided on whether this should return 1 or false -- however, in either case, the behavior of FILTER_VALIDATE_FLOAT should match, and it doesn't. Test script: --------------- var_dump(filter_var('01', FILTER_VALIDATE_INT)); var_dump(filter_var('01', FILTER_VALIDATE_FLOAT)); Expected result: ---------------- int(1) double(1) or: bool(false) bool(false) Actual result: -------------- bool(false) double(1) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66682&edit=1