setlocale

Description
Syntax
Examples
Links

Description

The setlocale of String for PHP set locale information.

Syntax

setlocale(
    int $category,
    string $locales,
    string ...$rest
): string|false

setlocale(
    int $category,
    array $locale_array
): string|false

Parameters

Constant	Description
LC_ALL	all below
LC_COLLATE	string comparison, strcoll()
LC_CTYPE	character classification and conversion, strtoupper()
LC_MONETARY	localeconv()
LC_NUMERIC	decimal separator, localeconv()
LC_TIME	date and time formatting with strftime()
LC_MESSAGES	system responses (available if PHP was compiled with libintl)

locales

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

If locales is followed by additional parameters then each 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.

rest

Optional string parameters to try as locale settings until success.

locale_array

Each array element 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.

Return

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. 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.

Examples

1 · category locales

<?

$category = LC_ALL;
$locales = "en_US";

$return = setlocale($category, $locales);

echo $return;

en_US

2 · rest

<?

$category = LC_ALL;
$locales = "de_DE@euro";
$rest1 = "de_DE";
$rest2 = "de";
$rest3 = "ge";

$return = setlocale($category, $locales, $rest1, $rest2, $rest3);

echo $return;

de_DE@euro

3 · category locale_array

<?

$category = LC_ALL;
$locale_array =
[
    "de_DE@euro",
    "de_DE",
    "de",
    "ge"
];

$return = setlocale($category, $locale_array);

echo $return;

de_DE@euro

4 · time

<?

$category = LC_TIME;
$locales = "nl_NL";

setlocale($category, $locales);

$format = "%A %d %B %Y";
$hour = 0;
$minute = 0;
$second = 0;
$month = 1;
$day = 1;
$year = 2000;
$timestamp = mktime($hour, $minute, $second, $month, $day, $year);
$strftime = strftime($format, $timestamp);

echo $strftime;

zaterdag 01 januari 2000