Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.php > #9363
| Message-ID | <1622055.H2T55JCus4@PointedEars.de> (permalink) |
|---|---|
| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
| Organization | PointedEars Software (PES) |
| Date | 2013-05-15 22:20 +0200 |
| Subject | Re: bug in is_numeric |
| Newsgroups | comp.lang.php |
| References | (10 earlier) <kmvlet$o6o$1@dont-email.me> <9869380.OEKH2unXeN@PointedEars.de> <kn0jok$ebm$1@speranza.aioe.org> <1934679.jXLOkI38UW@PointedEars.de> <kn0pai$na$1@speranza.aioe.org> |
Christoph Becker wrote:
> Thomas 'PointedEars' Lahn wrote:
>> I would rather the former bug was an implementation bug instead of a
>> documentation bug, because such a function should either work for all
>> supported numeric representations of the programming language, or there
>> should be a parameter specifying which representations are supported for
>> the specific call [like ECMAScripts parseInt(number : String, base :
>> Number) : Number].
>
> ACK. However, the usefulness of is_numeric() returning true for strings
> in binary notation is somewhat doubtful, as there is no simple way to
> actually convert such strings to a number:
>
> >>> (int) '0b1010'
> 0
> >>> intval('0b1010')
> 0
> >>> intval('0b1010', 2)
> 0
> >>> 0 + '0b1010'
> 0
>
> So the issue *might* as well be regarded as documentation bug.
ISTM to be strong indication that it is an implementation bug, where
the bug would be that the conversion from string to int is incomplete:
$ php -r 'var_dump(+"0x2A");'
int(42)
(as expected)
$ php -r 'var_dump(+"010");'
int(10)
(expected: 8)
A possibility for conversion is:
$ php -r 'var_dump(eval("return " . "0b1110" . ";"));'
int(14)
> BTW: I can confirm the same behavior in PHP 5.2.17 (Windows VC6 build).
Bogus because binary numeric literals were introduced in PHP 5.4.
PointedEars
--
When all you know is jQuery, every problem looks $(olvable).
Back to comp.lang.php | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
bug in is_numeric fred <email@address.com> - 2013-05-12 15:22 +0100
Re: bug in is_numeric Salvatore <sal@yojimbo.hack.invalid> - 2013-05-12 15:31 +0000
Re: bug in is_numeric Luuk <luuk@invalid.lan> - 2013-05-12 17:55 +0200
Re: bug in is_numeric Luuk <luuk@invalid.lan> - 2013-05-12 17:58 +0200
Re: bug in is_numeric Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2013-05-12 18:06 +0200
Re: bug in is_numeric Denis McMahon <denismfmcmahon@gmail.com> - 2013-05-12 16:24 +0000
Re: bug in is_numeric fred <email@address.com> - 2013-05-12 18:41 +0100
Re: bug in is_numeric Erwin Moller <erwinmollerusenet@xs4all.nl> - 2013-05-13 13:50 +0200
Re: bug in is_numeric fred <email@address.com> - 2013-05-13 14:58 +0100
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-13 10:11 -0400
Re: bug in is_numeric fred <email@address.com> - 2013-05-13 15:15 +0100
Re: bug in is_numeric Erwin Moller <erwinmollerusenet@xs4all.nl> - 2013-05-13 17:29 +0200
Re: bug in is_numeric "J.O. Aho" <user@example.net> - 2013-05-13 19:55 +0200
Re: bug in is_numeric Richard Yates <richard@yatesguitar.com> - 2013-05-14 06:41 -0700
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-14 21:43 -0400
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-14 23:01 -0400
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-15 05:48 -0400
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-15 06:11 -0400
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-16 18:36 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-15 15:19 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-15 20:23 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-15 20:49 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-15 21:58 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-15 22:20 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-15 22:42 +0200
Re: bug in is_numeric Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2013-05-15 23:53 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-16 00:29 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-16 00:40 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-16 05:00 +0200
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-16 18:16 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-17 00:45 +0200
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-16 22:52 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-17 18:33 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-17 20:39 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-17 23:45 +0200
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-18 14:47 +0200
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-15 20:57 -0400
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-16 00:09 -0400
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-17 01:17 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-16 20:30 -0400
Re: bug in is_numeric Christoph Becker <cmbecker69@gmx.de> - 2013-05-18 14:51 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 10:07 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-18 11:56 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 14:32 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-18 22:24 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 17:01 -0400
Re: bug in is_numeric Denis McMahon <denismfmcmahon@gmail.com> - 2013-05-18 21:58 +0000
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 19:21 -0400
Re: bug in is_numeric Denis McMahon <denismfmcmahon@gmail.com> - 2013-05-19 02:22 +0000
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 22:41 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 05:28 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 09:42 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 11:42 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 14:39 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-21 01:01 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-21 05:59 -0400
Re: bug in is_numeric The Natural Philosopher <tnp@invalid.invalid> - 2013-05-19 07:49 +0100
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 05:31 -0500
Re: bug in is_numeric The Natural Philosopher <tnp@invalid.invalid> - 2013-05-19 12:39 +0100
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 09:43 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 11:52 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 14:42 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-21 01:03 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-21 06:00 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 11:45 -0500
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 05:27 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 09:45 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 11:37 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 14:43 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-21 00:59 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-21 06:02 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-18 17:08 -0500
Re: bug in is_numeric The Natural Philosopher <tnp@invalid.invalid> - 2013-05-18 23:58 +0100
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 19:22 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-18 17:11 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 19:23 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 05:35 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 09:46 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 11:23 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-19 14:44 -0400
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-21 00:54 -0500
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-21 06:03 -0400
Re: bug in is_numeric fred <email@address.com> - 2013-05-23 15:38 +0100
Re: bug in is_numeric Arno Welzel <usenet@arnowelzel.de> - 2013-06-01 17:36 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-06-01 14:54 -0400
Re: bug in is_numeric Arno Welzel <usenet@arnowelzel.de> - 2013-06-05 15:25 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-06-05 10:34 -0400
Re: bug in is_numeric Arno Welzel <usenet@arnowelzel.de> - 2013-06-05 17:02 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-06-05 12:30 -0400
OT: What you say is not always what you mean (was: Re: bug in is_numeric) Arno Welzel <usenet@arnowelzel.de> - 2013-06-05 20:20 +0200
Re: OT: What you say is not always what you mean Jerry Stuckle <jstucklex@attglobal.net> - 2013-06-05 14:40 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-18 21:51 +0200
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-18 17:13 -0500
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-19 00:49 +0200
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 05:24 -0500
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-19 12:40 +0200
Re: bug in is_numeric The Natural Philosopher <tnp@invalid.invalid> - 2013-05-19 12:43 +0100
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-19 11:29 -0500
Re: bug in is_numeric Norman Peelman <npeelman@cfl.rr.com> - 2013-05-18 14:53 -0400
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-16 18:41 -0400
Re: bug in is_numeric Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-05-13 08:35 -0700
Re: bug in is_numeric Denis McMahon <denismfmcmahon@gmail.com> - 2013-05-13 20:26 +0000
Re: bug in is_numeric Denis McMahon <denismfmcmahon@gmail.com> - 2013-05-13 20:15 +0000
Re: bug in is_numeric Robert Heller <heller@deepsoft.com> - 2013-05-12 13:03 -0500
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-12 18:03 +0200
Re: bug in is_numeric fred <email@address.com> - 2013-05-12 18:34 +0100
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-12 19:40 +0200
Re: bug in is_numeric Luuk <luuk@invalid.lan> - 2013-05-12 21:51 +0200
Re: bug in is_numeric "Sanders Kaufman" <bucky@kaufman.net> - 2013-05-12 11:47 -0500
Re: bug in is_numeric Luuk <luuk@invalid.lan> - 2013-05-12 18:56 +0200
Re: bug in is_numeric Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2013-05-12 19:05 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-12 19:38 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-12 19:46 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-12 14:11 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-12 20:39 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-12 16:51 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-13 01:27 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-12 20:35 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-13 11:07 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-13 09:02 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-13 16:57 +0200
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-13 17:10 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-13 13:52 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-13 20:28 +0200
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-16 18:28 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-17 00:33 +0200
Re: bug in is_numeric SwissCheese <swisscheese@cfl.rr.com> - 2013-05-16 22:34 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-18 10:28 +0200
Re: bug in is_numeric Norman Peelman <npeelman@cfl.rr.com> - 2013-05-18 08:00 -0400
Re: bug in is_numeric Luuk <luuk@invalid.lan> - 2013-05-18 14:18 +0200
Re: bug in is_numeric Tim Streater <timstreater@greenbee.net> - 2013-05-18 13:20 +0100
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 08:47 -0400
Re: bug in is_numeric The Natural Philosopher <tnp@invalid.invalid> - 2013-05-18 14:05 +0100
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-18 10:16 -0400
Re: bug in is_numeric Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-18 16:14 +0200
Re: bug in is_numeric Sandman <mr@sandman.net> - 2013-05-14 10:34 +0200
Re: bug in is_numeric fred <email@address.com> - 2013-05-14 14:47 +0100
Re: bug in is_numeric Denis McMahon <denismfmcmahon@gmail.com> - 2013-05-14 14:54 +0000
Re: bug in is_numeric Sandman <mr@sandman.net> - 2013-05-15 08:05 +0200
Re: bug in is_numeric Jerry Stuckle <jstucklex@attglobal.net> - 2013-05-15 06:27 -0400
Re: bug in is_numeric Erwin Moller <erwinmollerusenet@xs4all.nl> - 2013-05-15 13:11 +0200
csiph-web