Languages::setLocale() method

Set the current locale

This function behaves exactly the same way as PHP setlocale except for the following:

  • If the $locale argument is omitted, it uses the locale setting translated for the current user language.
  • You can optionally specify a CSV string of locales to try for the $locale argument.
  • You can optionally or a “category=locale;category=locale;category=locale” string for the $locale argument. When this type of string is used, the $category argument is ignored.
  • This method does not accept more than the 3 indicated arguments.
  • Any of the arguments may be swapped.

See the PHP setlocale link above for a list of constants that can be used for the $category argument.

Note that the locale is set once at bootup by ProcessWire, and does not change after that unless you call this method. Meaning, a change to $user->language does not automatically change the locale. If you want to change the locale, you would have to call this method after changing the user’s language from the API side.

Example

// Set locale to whatever settings defined for current $user language
$languages->setLocale();

// Set all locale categories
$languages->setLocale(LC_ALL, 'en_US.UTF-8');

// Set locale for specific category (CTYPE)
$langauges->setLocale(LC_CTYPE, 'en_US.UTF-8');

// Try multiple locales till one works (in order) using array
$languages->setLocale(LC_ALL, [ 'en_US.UTF-8', 'en_US', 'en' ]);

// Same as above, except using CSV string
$languages->setLocale(LC_ALL, 'en_US.UTF-8, en_US, en');

// Set multiple categories and locales (first argument ignored)
$languages->setLocale(null, 'LC_CTYPE=en_US;LC_NUMERIC=de_DE;LC_TIME=es_ES'); 

Usage

// basic usage
$string = $languages->setLocale();

// usage with all arguments
$string = $languages->setLocale($category = 6, $locale = null);

Arguments

NameType(s)Description
category (optional)int, string, array, null, Language

Specify a PHP “LC_” constant (int) or omit (or null) for default (LC_ALL).

locale (optional)int, string, array, null, Language

Specify string, array or CSV string of locale name(s), omit (null) for current language locale, or specify Language object to pull locale from that language.

Return value

string bool

Returns the locale that was set or boolean false if requested locale cannot be set.

See Also


Languages methods and properties

API reference based on ProcessWire core version 3.0.125

Twitter updates

  • New post: This week we take a look at what’s in ProcessWire 3.0.126 which focuses largely on resolving issue reports, but also includes a handy new Page if() method— More
    15 February 2019
  • New post: ProcessWire 3.0.125 has several useful new Sanitizer methods & options, plus new ways to access them directly from the Input API variable. This makes handling user input even easier than before. Plus updates to our i18n functions & API docs— More
    25 January 2019
  • New post: In this week’s post, we’ll take a look a look at the new website and focus on some parts of it and how they were built. Then we’ll dive into the latest version of ProcessWire on the dev branch, version 3.0.124— More
    11 January 2019

Newest forum posts

Latest news

  • ProcessWire Weekly #249
    In the 249th issue of ProcessWire Weekly we're going to walk you through the latest core updates (ProcessWire 3.0.126), introduce a new third party module called Page Access Releasetime, and pick a new site of the week. Read on!
    Weekly.pw / 16 February 2019
  • ProcessWire 3.0.126 core updates
    This week we take a look at what’s in ProcessWire 3.0.126 which focuses largely on resolving issue reports, but also includes a handy new $page->if() method. 
    Blog / 15 February 2019
  • Subscribe to weekly ProcessWire news

“ProcessWire is like a breath of fresh air. So powerful yet simple to build with and customise, and web editors love it too.” —Margaret Chatwin, Web developer