Bug #77278 [Ver]: floatval(strval(value)) truncates if locale's decimal_point isn't a period
| From: | requinix@php.net | Date: | Mon, 10 Dec 2018 22:16:59 +0000 |
| Subject: | Bug #77278 [Ver]: floatval(strval(value)) truncates if locale's decimal_point isn't a period | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-218385@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=77278&edit=1
ID: 77278
Updated by: requinix@php.net
Reported by: spam2 at rhsoft dot net
Summary: floatval(strval(value)) truncates if locale's
decimal_point isn't a period
Status: Verified
Type: Bug
Package: Scripting Engine problem
PHP Version: Irrelevant
Block user comment: Y
Private report: N
New Comment:
spam2, there's two bugs here:
1. PHP converts by locale in one direction (float->string) but not in the other direction
(string->float). It should be consistent. But like @nikic said, this inconsistency is currently
the intended behavior - not the correct behavior, merely the *intended* behavior. It does need to
get fixed but it's not a simple thing to just do.
2. Tidy changes locales for whatever reason. Okay. But it does not change the locale back to the
original value when it is done, and that is not okay. It needs to change it back in case the calling
code had set a locale and still needs it. That is just basic etiquette for any library code. This is
a bug Tidy needs to fix, not PHP.
Getting the locale is possible by passing null to setlocale. You probably aren't seeing en_US
because you don't have the locale installed, and calling setlocale with it would have returned
false. Do
locale -a to see what you have available.
Previous Comments:
------------------------------------------------------------------------
[2018-12-10 21:59:50] nikic@php.net
Please calm down.
------------------------------------------------------------------------
[2018-12-10 21:52:37] spam2 at rhsoft dot net
ok, you can partially repdoduce that behavior
echo (string)4/3, "\n";
setlocale(LC_ALL, 'en_US.UTF-8');
echo (string)4/3, "\n";
setlocale(LC_ALL, 'de_DE.UTF-8');
echo (string)4/3, "\n";
-------------------------------
BUT YOU CANN NOT GET THE CURRECT LOCALE WITH PHP
echo (string)4/3, "\n";
setlocale(LC_ALL, 'en_US.UTF-8');
echo setlocale(LC_ALL, NULL), "\n";
echo (string)4/3, "\n";
setlocale(LC_ALL, 'de_DE.UTF-8');
echo setlocale(LC_ALL, NULL), "\n";
echo (string)4/3, "\n";
[harry@srv-rhsoft:/downloads]$ php test.php
1.3333333333333
de_DE.UTF-8
1,3333333333333
de_DE.UTF-8
1,3333333333333
-------------------------------
why don't that shit mention 'en_US.UTF-8' which i would have liked to put at the
libtidy bugreport instead wasting all my time with assumptions?
there is anyways no sibgle pojnt of have TYPECASTS behave different - that's what format
functions are!
------------------------------------------------------------------------
[2018-12-10 21:45:13] spam2 at rhsoft dot net
nonsense! show me the PHP code where type casts after setlocale() change tehir meaning!
you can't even distinct what happens by use setlocale('whatever', NULL) before and
after the tidy call because i get always get de_DE.UTF-8 as result
------------------------------------------------------------------------
[2018-12-10 21:41:36] requinix@php.net
You can't blame PHP for Tidy's problem. If they change locale (already a dangerous
operation since it's not thread-safe) and then don't revert it to the previous setting
when they're done, that's their fault.
------------------------------------------------------------------------
[2018-12-10 21:33:13] spam2 at rhsoft dot net
working as intended?
a random linked library calls locale and the whole behavior of internal php typecast changes for
every follow-up code in a PHP application is intended? really?
------------------------------------------------------------------------
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https://bugs.php.net/bug.php?id=77278
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