Tutorials References Exercises Bootcamps Videos Menu
Sign Up Create Website Get Certified Upgrade

PHP Tutorial

PHP HOME PHP Intro PHP Install PHP Syntax PHP Comments PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Math PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP Loops PHP Functions PHP Arrays PHP Superglobals PHP RegEx

PHP Forms

PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete

PHP Advanced

PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP Exceptions


PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Interfaces PHP Traits PHP Static Methods PHP Static Properties PHP Namespaces PHP Iterables

MySQL Database

MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data


PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM



PHP Examples

PHP Examples PHP Compiler PHP Quiz PHP Exercises PHP Certificate

PHP Reference

PHP Overview PHP Array PHP Calendar PHP Date PHP Directory PHP Error PHP Exception PHP Filesystem PHP Filter PHP FTP PHP JSON PHP Keywords PHP Libxml PHP Mail PHP Math PHP Misc PHP MySQLi PHP Network PHP Output Control PHP RegEx PHP SimpleXML PHP Stream PHP String PHP Variable Handling PHP XML Parser PHP Zip PHP Timezones

PHP setlocale() Function

❮ PHP String Reference


Set the locale to US English and then back to default again:

echo setlocale(LC_ALL,"US");
echo "<br>";
echo setlocale(LC_ALL,NULL);
Try it Yourself »

Definition and Usage

The setlocale() function sets locale information.

Locale information is language, monetary, time and other information specific for a geographical area.

Note: The setlocale() function changes the locale only for the current script.

Tip: The locale information can be set to system default with setlocale(LC_ALL,NULL)

Tip: To get numeric formatting information, see the localeconv() function.



Parameter Values

Parameter Description
constant Required. Specifies what locale information should be set.

Available constants:

  • LC_ALL - All of the below
  • LC_COLLATE -  Sort order
  • LC_CTYPE - Character classification and conversion (e.g. all characters should be lower or upper-case)
  • LC_MESSAGES - System message formatting
  • LC_MONETARY - Monetary/currency formatting
  • LC_NUMERIC - Numeric formatting
  • LC_TIME - Date and time formatting
location Required. Specifies what country/region to set the locale information to. Can be a string or an array. It is possible to pass multiple locations.

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

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

If the location is an array, setlocale() will try each array element until it finds a valid language or region code. This is very useful if a region is known under different names on different systems.

Note: To view all available language codes, go to our Language code reference.

Technical Details

Return Value: Returns the current locale settings, or FALSE on failure. The return value depends on the system that PHP is running.
PHP Version: 4+
Changelog: PHP 5.3.0 - If a string is passed to the constant parameter instead of one of the LC_ constants, this function throws an E_DREPRECATED notice.

❮ PHP String Reference