Bug #66399 [Opn]: Inconsistent runtime support for integer binary/hex syntax

Edit report at https://bugs.php.net/bug.php?id=66399&edit=1 ID: 66399 Updated by: krakjoe@php.net Reported by: benjamin at zikarsky dot de Summary: Inconsistent runtime support for integer binary/hex syntax Status: Open Type: Bug Package: Strings related PHP Version: 5.5.7 Block user comment: N Private report: N New Comment: Patch attached ... while this has the desired outcome, I've not tested and don't know if it introduces inconsistencies elsewhere. I would assume there is some non-obvious reason this wasn't done in the first place ? <?php $bin = "0b100"; $hex = "0x04"; var_dump((int) $bin, (int) $hex); var_dump((double) $bin, (double) $hex); var_dump(is_numeric($bin)); var_dump(is_numeric($hex)); var_dump(intval($bin), intval($hex)); var_dump(floatval($bin), floatval($hex)); Yields: int(4) int(4) float(4) float(4) bool(true) bool(true) int(4) int(4) float(4) float(4) Previous Comments: ------------------------------------------------------------------------ [2014-01-03 13:39:44] krakjoe@php.net The following patch has been added/updated: Patch Name: inconsistent-bin-hex-handling.patch Revision: 1388756384 URL: https://bugs.php.net/patch-display.php?bug=66399&patch=inconsistent-bin-hex-handling.patch&revision=1388756384 ------------------------------------------------------------------------ [2014-01-03 11:46:47] benjamin at zikarsky dot de Description: ------------ While PHP's support for hexadecimal and binary (>=5.4) integer literals works fine at "compile"-time, it is inconsistent/lacking at runtime. E.g. in strings. - is_numeric($v) detects hexadecimal format but not the binary version - casting to int (both with (int) and intval($v)) is not supported for either format I am not sure if this is a bug/missing feature or unwanted behavior. I think it should be at least consistent for is_numeric. Test script: --------------- <?php $bin = "0b100"; $hex = "0x04"; var_dump((int) $bin); var_dump((int) $hex); var_dump(is_numeric($bin)); var_dump(is_numeric($hex)); var_dump(intval($bin)); var_dump(intval($hex)); Expected result: ---------------- int(4) int(4) bool(true) bool(true) int(4) int(4) Actual result: -------------- Tested with: PHP 5.5.7 (cli) (built: Jan 3 2014 11:33:48) Copyright (c) 1997-2013 The PHP Group Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies Output: int(0) int(0) bool(false) bool(true) int(0) int(0) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66399&edit=1