load_default_textdomain( string $locale = null )

Load default translated strings based on locale.

Description

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

See also

Parameters

$locale

(string) (Optional) Locale to load. Default is the value of get_locale().

Default value: null

Return

(bool) Whether the textdomain was loaded.

Source

File: 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;
}

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Related

Uses

Uses
Uses Description
wp-includes/l10n.php: unload_textdomain()

Unload translations for a text domain.
wp-includes/l10n.php: load_textdomain()

Load a .mo file into the text domain $domain.
wp-includes/l10n.php: get_user_locale()

Retrieves the locale of a user.
wp-includes/l10n.php: get_locale()

Retrieves the current locale.
wp-includes/load.php: is_admin()

Whether the current request is for an administrative interface page.
wp-includes/load.php: is_multisite()

If Multisite is enabled.
wp-includes/load.php: wp_installing()

Check or set whether ClassicPress is in “installation” mode.
wp-includes/load.php: is_network_admin()

Whether the current request is for the network administrative interface.
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Changelog

Changelog
Version Description
WP-1.5.0 Introduced.