PHP 7.2.0 Release Candidate 4 Released

setlocale

(PHP 4, PHP 5, PHP 7)

setlocaleSet locale information

Description

string setlocale ( int $category , string $locale [, string $... ] )
string setlocale ( int $category , array $locale )

Sets locale information.

Parameters

category

category is a named constant specifying the category of the functions affected by the locale setting:

  • LC_ALL for all of the below
  • LC_COLLATE for string comparison, see strcoll()
  • LC_CTYPE for character classification and conversion, for example strtoupper()
  • LC_MONETARY for localeconv()
  • LC_NUMERIC for decimal separator (See also localeconv())
  • LC_TIME for date and time formatting with strftime()
  • LC_MESSAGES for system responses (available if PHP was compiled with libintl)

locale

If locale is NULL or the empty string "", the locale names will be set from the values of environment variables with the same names as the above categories, or from "LANG".

If locale is "0", the locale setting is not affected, only the current setting is returned.

If locale is an array or followed by additional parameters then each array element or parameter is tried to be set as new locale until success. This is useful if a locale is known under different names on different systems or for providing a fallback for a possibly not available locale.

...

(Optional string or array parameters to try as locale settings until success.)

Note:

On Windows, setlocale(LC_ALL, '') sets the locale names from the system's regional/language settings (accessible via Control Panel).

Return Values

Returns the new current locale, or FALSE if the locale functionality is not implemented on your platform, the specified locale does not exist or the category name is invalid.

An invalid category name also causes a warning message. Category/locale names can be found in » RFC 1766 and » ISO 639. Different systems have different naming schemes for locales.

Note:

The return value of setlocale() depends on the system that PHP is running. It returns exactly what the system setlocale function returns.

Changelog

Version Description
7.0.0 Support for the category parameter passed as a string has been removed. Only LC_* constants can be used as of this version.
5.3.0 This function now throws an E_DEPRECATED notice if a string is passed to the category parameter instead of one of the LC_* constants.

Examples

Example #1 setlocale() Examples

<?php
/* Set locale to Dutch */
setlocale(LC_ALL'nl_NL');

/* Output: vrijdag 22 december 1978 */
echo strftime("%A %e %B %Y"mktime(00012221978));

/* try different possible locale names for german */
$loc_de setlocale(LC_ALL'de_DE@euro''de_DE''de''ge');
echo 
"Preferred locale for german on this system is '$loc_de'";
?>

Example #2 setlocale() Examples for Windows

<?php
/* Set locale to Dutch */
setlocale(LC_ALL'nld_nld');

/* Output: vrijdag 22 december 1978 */
echo strftime("%A %d %B %Y"mktime(00012221978));

/* try different possible locale names for german */
$loc_de setlocale(LC_ALL'de_DE@euro''de_DE''deu_deu');
echo 
"Preferred locale for german on this system is '$loc_de'";
?>

Notes

Warning

The locale information is maintained per process, not per thread. If you are running PHP on a multithreaded server API like IIS, HHVM or Apache on Windows, you may experience sudden changes in locale settings while a script is running, though the script itself never called setlocale(). This happens due to other scripts running in different threads of the same process at the same time, changing the process-wide locale using setlocale().

Tip

Windows users will find useful information about locale strings at Microsoft's MSDN website. Supported language strings can be found in the » language strings documentation and supported country/region strings in the » country/region strings documentation.

add a note add a note

User Contributed Notes 43 notes

up
97
r dot nospam dot velseboer at quicknet dot nospam dot nl
15 years ago
be careful with the LC_ALL setting, as it may introduce some unwanted conversions. For example, I used

setlocale (LC_ALL, "Dutch");

to get my weekdays in dutch on the page. From that moment on (as I found out many hours later) my floating point values from MYSQL where interpreted as integers because the Dutch locale wants a comma (,) instead of a point (.) before the decimals. I tried printf, number_format, floatval.... all to no avail. 1.50 was always printed as 1.00 :(

When I set my locale to :

setlocale (LC_TIME, "Dutch");

my weekdays are good now and my floating point values too.

I hope I can save some people the trouble of figuring this out by themselves.

Rob
up
37
russ at eatmymonkeydust dot com
5 years ago
If you are looking for a getlocale() function simply pass 0 (zero) as the second parameter to setlocale().

Beware though if you use the category LC_ALL and some of the locales differ as a string containing all the locales is returned:

<?php
echo setlocale(LC_ALL, 0);

// LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;LC_NAME=C;
// LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C

echo setlocale(LC_CTYPE, 0);

// en_US.UTF-8

setlocale(LC_ALL, "en_US.UTF-8");
echo
setlocale(LC_ALL, 0);

// en_US.UTF-8

?>

If you are looking to store and reset the locales you could do something like this:

<?php

$originalLocales
= explode(";", setlocale(LC_ALL, 0));
setlocale(LC_ALL, "nb_NO.utf8");

// Do something

foreach ($originalLocales as $localeSetting) {
  if (
strpos($localeSetting, "=") !== false) {
    list (
$category, $locale) = explode("=", $localeSetting);
  }
  else {
   
$category = LC_ALL;
   
$locale   = $localeSetting;
  }
 
setlocale($category, $locale);
}

?>

The above works here (Ubuntu Linux) but as the setlocale() function is just wrapping the equivalent system calls, your mileage may vary on the result.
up
21
Kari Sderholm aka Haprog
8 years ago
It took me a while to figure out how to get a Finnish locale correctly set on Ubuntu Server with Apache2 and PHP5.

At first the output for "locale -a" was this:
C
en_US.utf8
POSIX

I had to install a finnish language pack with
"sudo apt-get install language-pack-fi-base"

Now the output for "locale -a" is:
C
en_US.utf8
fi_FI.utf8
POSIX

The last thing you need to do after installing the correct language pack is restart Apache with "sudo apache2ctl restart". The locale "fi_FI.utf8" can then be used in PHP5 after restarting Apache.

For setting Finnish timezone and locale in PHP use:
<?php
date_default_timezone_set
('Europe/Helsinki');
setlocale(LC_ALL, array('fi_FI.UTF-8','fi_FI@euro','fi_FI','finnish'));
?>
up
11
Shashakhmetov Talgat
2 years ago
//Fix encoding for russian locale on windows
$locale = setlocale(LC_ALL, 'ru_RU.CP1251', 'rus_RUS.CP1251', 'Russian_Russia.1251');

function strftime_fix($format, $locale, $timestamp = time()){
    // Fix %e for windows
    if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
        $format = preg_replace('#(?<!%)((?:%%)*)%e#', '\1%#d', $format);
    }
    // convert
    $date_str = strftime($format, $timestamp);
    if (stripos($locale, "1251") !== false) {
      return iconv("windows-1251","utf-8", $date_str);
    } elseif (stripos($locale, "1252") !== false) {
      return iconv("windows-1252","utf-8", $date_str);
    } else {
      return $date_str;
    }
}
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11
brice/axice/be
8 years ago
Pay attention to the syntax.
- UTF8 without dash ('-')
- locale.codeset and not locale-codeset.

Stupid newbie error but worth knowing them when starting with gettext.

<?php
$codeset
= "UTF8"// warning ! not UTF-8 with dash '-'
       
// for windows compatibility (e.g. xampp) : theses 3 lines are useless for linux systems

putenv('LANG='.$lang.'.'.$codeset);
putenv('LANGUAGE='.$lang.'.'.$codeset);
bind_textdomain_codeset('mydomain', $codeset);

// set locale
bindtextdomain('mydomain', ABSPATH.'/locale/');
setlocale(LC_ALL, $lang.'.'.$codeset);
textdomain('mydomain');
?>

where directory structure of locale is (for example) :
locale/fr_FR/LC_MESSAGES/mydomain.mo
locale/en_US/LC_MESSAGES/mydomain.mo

and ABSPATH is the absolute path to the locale dir

further note, under linux systems, it seems to be necessary to create the locale at os level using 'locale-gen'.
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3
data dot ocean dot italia at gmail dot com
4 years ago
Instead, using php with IIS, I had to use this line for Italian language...

<?php setlocale(LC_ALL, 'Italian_Italy.1250'); ?>
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7
Un_passant
8 years ago
For debian/ubuntu, don't forget the charset UFT8.

// Works on Ubuntu 8.04 Server
setlocale(LC_TIME, 'fr_FR.UTF8', 'fr.UTF8', 'fr_FR.UTF-8', 'fr.UTF-8');
up
7
Leigh Morresi
9 years ago
Setting locale that is not supported by your system will result in some string operations returning a question mark "?" in your strings where it needs to perform transliteration.

1) Always check the return of setlocale() to ensure it has set to something supported

2) on Linux you can use the "locale -a" command to find a list of supported locales
up
5
pigmeu at pigmeu dot net
13 years ago
!!WARNING!!

The "locale" always depend on the server configuration.

i.e.:
When trying to use "pt_BR" on some servers you will ALWAYS get false. Even with other languages.

The locale string need to be supported by the server. Sometimes there are diferents charsets for a language, like "pt_BR.utf-8" and "pt_BR.iso-8859-1", but there is no support for a _standard_ "pt_BR".

This problem occours in Windows platform too. Here you need to call "portuguese" or "spanish" or "german" or...

Maybe the only way to try to get success calling the function setlocale() is:
setlocale(LC_ALL, "pt_BR", "pt_BR.iso-8859-1", "pt_BR.utf-8", "portuguese", ...);

But NEVER trust on that when making functions like date conversions or number formating. The best way to make sure you are doing the right thing, is using the default "en_US" or "en_UK", by not calling the setlocale() function. Or, make sure that your server support the lang you want to use, with some tests.

Remember that: Using the default locale setings is the best way to "talk" with other applications, like dbs or rpc servers, too.

[]s

Pigmeu
up
5
Anonymous
11 years ago
The example from bruno dot cenou at revues dot org below shows the possibility, but I want to spell it out: you can add charset info to setlocale.

Example:

Into my utf-8-encoded page I want to insert the name of the current month, which happens to be March, in German "März" - with umlaut. If you use

   setlocale(LC_TIME, 'de_DE');
   echo strftime("%B");

this will return "M&auml;rz", but that html-entity will look like this on a utf-8 page: "M?rz". Not what I want.

But if you use

   setlocale(LC_TIME, 'de_DE.UTF8');  // note the charset info !
   echo strftime("%B");

this returns "M√§rz", which, on utf-8, looks like it should: "März".
birkholzbilewebmail dce/be
2 years ago
$locale = setlocale(LC_ANULL&g" );
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up
2 3
noogbile-userlcean doprog
8 years ago
Setse) :
up
11
RobQuisalgat
13 years ago
Sett/ bacn makupeate the lothis: strin>Anore. Yre you needowsgcoer in tests.Anore. ale.
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$originalLocales
= explode(";", setlocale(LC_ALL, 0));
setlocale(LC_ALL, );

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);?>
up
2 3
Periksp;lgat
13 years ago
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<?phpsetlocale(, );
setlocale(LC_CTYPE, );
?>

<?phpsetlocale(LC_CTYPE, );
setlocale(, );
?>
up
2 3
tomaevues hr exbile at gmail dot com
8 years ago
? ( i/>Tage you nth "s/ roil pmrmosnvers), is (for exaeemsaan auCzsp;dos($locarugs Do someto78% like this:
up
11
bryn AT lunarve tDOT dot com
9 years ago
Un_ALcym' (abbrevis="dnplatfof Cymraeg)info to setlothis:

<?phpsetlocale(, );
= ("=y= )););
?>
Buteck thhe e duver supptspter inspocale.
up
11
Se. EKmous
11 years ago
up
11
ostapk com
9 years ago
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up
11
szepeshazibile at gmail dot com
13 years ago
alem>jot. If y; enes anf, "pnke dot cgh (64% lme)infoove iurs in Windenvi thereauove arote,cale.
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up
2 3
ink extfuncalisalgat
11 ears ago
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?>
up
0 3
lezsakeooi1bile at gmail dot com
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up
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wuyid
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up
- 11
aaaaa976bile at gmail dot com
2 years ago
, ate1",takes setlocitiws,.IISfote, but typacng ttatriherd">e on windthead"wild localls,s R treestatriypacng trydolv like trz".
up
0 3
phcorp com
8 years ago
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up
0 3
flavioacurnverdobile at gmail dot com
8 years ago
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up
0 3
leifbilenelandmail dk com
8 years ago
&nbwin tests.
up
0 3
garyaled
8 years ago
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Omer Sabic com
8 years ago
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0 3
m, wagmail ksetrekbilebrtdoboxmail dz com
9 years ago
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9 years ago
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up
-2 3
mkbiletotumail dot com
13 years ago
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up
-2 3
wisborg com
8 years ago
up
-3 3
cmail mfdmaxbile at gmail dot com
2 years ago
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13 years ago
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-2 3
Edo s Matrsemous
11 years ago
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-2 3
glensbileeuropsctmail nomous
11 years ago
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up
-3 3
dvbilejoshelimail dot com
13 years ago
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-2 3
jonasbilejonashaagndil de com
9 years ago
  &nbhe "localhz".
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-4 3
Morgou Christianssch,cale&t">mogbileder lmail nucale&">?&gom
8 years ago
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-7 3
Arjon com
9 years ago
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