load_default_textdomain

Load default translated strings based on locale.

Description

load_default_textdomain( (null) $locale = null );

Loads the .mo file in WP_LANG_DIR constant path from WordPress root. The translated (.mo) file is named based on the locale.

Parameters (1)

0. $locale — Optional. (null) => null: Locale to load. Default is the value of get_locale(…).

Usage

if ( !function_exists( 'load_default_textdomain' ) ) { 
    require_once ABSPATH . WPINC . '/l10n.php'; 
} 
  
// Optional. Locale to load. Default is the value of get_locale(). 
$locale = null; 
  
// NOTICE! Understand what this does before running. 
$result = load_default_textdomain($locale);

Defined (1)

The function is defined in the following location(s).

/wp-includes/l10n.php

function load_default_textdomain( $locale = null ) { 
    if ( null === $locale ) { 
        $locale = is_admin() ? get_user_locale() : get_locale(); 
    } 
 
    // Unload previously loaded strings so we can switch translations. 
    unload_textdomain( 'default' ); 
 
    $return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo" ); 
 
    if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists(  WP_LANG_DIR . "/admin-$locale.mo" ) ) { 
        load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo" ); 
        return $return; 
    } 
 
    if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) ) { 
        load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo" ); 
    } 
 
    if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) 
        load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo" ); 
 
    return $return; 
}