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<?php
/**
* Core Translation API
*
* @package WordPress
* @subpackage i18n
* @since 1.2.0
*/
/**
* Retrieves the current locale.
*
* If the locale is set, then it will filter the locale in the {@see 'locale'}
* filter hook and return the value.
*
* If the locale is not set already, then the WPLANG constant is used if it is
* defined. Then it is filtered through the {@see 'locale'} filter hook and
* the value for the locale global set and the locale is returned.
*
* The process to get the locale should only be done once, but the locale will
* always be filtered using the {@see 'locale'} hook.
*
* @since 1.5.0
*
* @global string $locale The current locale.
* @global string $wp_local_package Locale code of the package.
*
* @return string The locale of the blog or from the {@see 'locale'} hook.
*/
function get_locale() {
global $locale, $wp_local_package;
if ( isset( $locale ) ) {
/** This filter is documented in wp-includes/l10n.php */
return apply_filters( 'locale', $locale );
}
if ( isset( $wp_local_package ) ) {
$locale = $wp_local_package;
}
// WPLANG was defined in wp-config.
if ( defined( 'WPLANG' ) ) {
$locale = WPLANG;
}
// If multisite, check options.
if ( is_multisite() ) {
// Don't check blog option when installing.
if ( wp_installing() ) {
$ms_locale = get_site_option( 'WPLANG' );
} else {
$ms_locale = get_option( 'WPLANG' );
if ( false === $ms_locale ) {
$ms_locale = get_site_option( 'WPLANG' );
}
}
if ( false !== $ms_locale ) {
$locale = $ms_locale;
}
} else {
$db_locale = get_option( 'WPLANG' );
if ( false !== $db_locale ) {
$locale = $db_locale;
}
}
if ( empty( $locale ) ) {
$locale = 'en_US';
}
/**
* Filters the locale ID of the WordPress installation.
*
* @since 1.5.0
*
* @param string $locale The locale ID.
*/
return apply_filters( 'locale', $locale );
}
/**
* Retrieves the locale of a user.
*
* If the user has a locale set to a non-empty string then it will be
* returned. Otherwise it returns the locale of get_locale().
*
* @since 4.7.0
*
* @param int|WP_User $user User's ID or a WP_User object. Defaults to current user.
* @return string The locale of the user.
*/
function get_user_locale( $user = 0 ) {
$user_object = false;
if ( 0 === $user && function_exists( 'wp_get_current_user' ) ) {
$user_object = wp_get_current_user();
} elseif ( $user instanceof WP_User ) {
$user_object = $user;
} elseif ( $user && is_numeric( $user ) ) {
$user_object = get_user_by( 'id', $user );
}
if ( ! $user_object ) {
return get_locale();
}
$locale = $user_object->locale;
return $locale ? $locale : get_locale();
}
/**
* Determines the current locale desired for the request.
*
* @since 5.0.0
*
* @global string $pagenow The filename of the current screen.
*
* @return string The determined locale.
*/
function determine_locale() {
/**
* Filters the locale for the current request prior to the default determination process.
*
* Using this filter allows to override the default logic, effectively short-circuiting the function.
*
* @since 5.0.0
*
* @param string|null $locale The locale to return and short-circuit. Default null.
*/
$determined_locale = apply_filters( 'pre_determine_locale', null );
if ( $determined_locale && is_string( $determined_locale ) ) {
return $determined_locale;
}
if (
isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] &&
( ! empty( $_GET['wp_lang'] ) || ! empty( $_COOKIE['wp_lang'] ) )
) {
if ( ! empty( $_GET['wp_lang'] ) ) {
$determined_locale = sanitize_locale_name( $_GET['wp_lang'] );
} else {
$determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] );
}
} elseif (
is_admin() ||
( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() )
) {
$determined_locale = get_user_locale();
} elseif (
( ! empty( $_REQUEST['language'] ) || isset( $GLOBALS['wp_local_package'] ) )
&& wp_installing()
) {
if ( ! empty( $_REQUEST['language'] ) ) {
$determined_locale = sanitize_locale_name( $_REQUEST['language'] );
} else {
$determined_locale = $GLOBALS['wp_local_package'];
}
}
if ( ! $determined_locale ) {
$determined_locale = get_locale();
}
/**
* Filters the locale for the current request.
*
* @since 5.0.0
*
* @param string $determined_locale The locale.
*/
return apply_filters( 'determine_locale', $determined_locale );
}
/**
* Retrieves the translation of $text.
*
* If there is no translation, or the text domain isn't loaded, the original text is returned.
*
* *Note:* Don't use translate() directly, use __() or related functions.
*
* @since 2.2.0
* @since 5.5.0 Introduced `gettext-{$domain}` filter.
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text.
*/
function translate( $text, $domain = 'default' ) {
$translations = get_translations_for_domain( $domain );
$translation = $translations->translate( $text );
/**
* Filters text with its translation.
*
* @since 2.0.11
*
* @param string $translation Translated text.
* @param string $text Text to translate.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( 'gettext', $translation, $text, $domain );
/**
* Filters text with its translation for a domain.
*
* The dynamic portion of the hook name, `$domain`, refers to the text domain.
*
* @since 5.5.0
*
* @param string $translation Translated text.
* @param string $text Text to translate.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( "gettext_{$domain}", $translation, $text, $domain );
return $translation;
}
/**
* Removes last item on a pipe-delimited string.
*
* Meant for removing the last item in a string, such as 'Role name|User role'. The original
* string will be returned if no pipe '|' characters are found in the string.
*
* @since 2.8.0
*
* @param string $text A pipe-delimited string.
* @return string Either $text or everything before the last pipe.
*/
function before_last_bar( $text ) {
$last_bar = strrpos( $text, '|' );
if ( false === $last_bar ) {
return $text;
} else {
return substr( $text, 0, $last_bar );
}
}
/**
* Retrieves the translation of $text in the context defined in $context.
*
* If there is no translation, or the text domain isn't loaded, the original text is returned.
*
* *Note:* Don't use translate_with_gettext_context() directly, use _x() or related functions.
*
* @since 2.8.0
* @since 5.5.0 Introduced `gettext_with_context-{$domain}` filter.
*
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text on success, original text on failure.
*/
function translate_with_gettext_context( $text, $context, $domain = 'default' ) {
$translations = get_translations_for_domain( $domain );
$translation = $translations->translate( $text, $context );
/**
* Filters text with its translation based on context information.
*
* @since 2.8.0
*
* @param string $translation Translated text.
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( 'gettext_with_context', $translation, $text, $context, $domain );
/**
* Filters text with its translation based on context information for a domain.
*
* The dynamic portion of the hook name, `$domain`, refers to the text domain.
*
* @since 5.5.0
*
* @param string $translation Translated text.
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( "gettext_with_context_{$domain}", $translation, $text, $context, $domain );
return $translation;
}
/**
* Retrieves the translation of $text.
*
* If there is no translation, or the text domain isn't loaded, the original text is returned.
*
* @since 2.1.0
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text.
*/
function __( $text, $domain = 'default' ) {
return translate( $text, $domain );
}
/**
* Retrieves the translation of $text and escapes it for safe use in an attribute.
*
* If there is no translation, or the text domain isn't loaded, the original text is returned.
*
* @since 2.8.0
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text on success, original text on failure.
*/
function esc_attr__( $text, $domain = 'default' ) {
return esc_attr( translate( $text, $domain ) );
}
/**
* Retrieves the translation of $text and escapes it for safe use in HTML output.
*
* If there is no translation, or the text domain isn't loaded, the original text
* is escaped and returned.
*
* @since 2.8.0
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text.
*/
function esc_html__( $text, $domain = 'default' ) {
return esc_html( translate( $text, $domain ) );
}
/**
* Displays translated text.
*
* @since 1.2.0
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
*/
function _e( $text, $domain = 'default' ) {
echo translate( $text, $domain );
}
/**
* Displays translated text that has been escaped for safe use in an attribute.
*
* Encodes `< > & " '` (less than, greater than, ampersand, double quote, single quote).
* Will never double encode entities.
*
* If you need the value for use in PHP, use esc_attr__().
*
* @since 2.8.0
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
*/
function esc_attr_e( $text, $domain = 'default' ) {
echo esc_attr( translate( $text, $domain ) );
}
/**
* Displays translated text that has been escaped for safe use in HTML output.
*
* If there is no translation, or the text domain isn't loaded, the original text
* is escaped and displayed.
*
* If you need the value for use in PHP, use esc_html__().
*
* @since 2.8.0
*
* @param string $text Text to translate.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
*/
function esc_html_e( $text, $domain = 'default' ) {
echo esc_html( translate( $text, $domain ) );
}
/**
* Retrieves translated string with gettext context.
*
* Quite a few times, there will be collisions with similar translatable text
* found in more than two places, but with different translated context.
*
* By including the context in the pot file, translators can translate the two
* strings differently.
*
* @since 2.8.0
*
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated context string without pipe.
*/
function _x( $text, $context, $domain = 'default' ) {
return translate_with_gettext_context( $text, $context, $domain );
}
/**
* Displays translated string with gettext context.
*
* @since 3.0.0
*
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
*/
function _ex( $text, $context, $domain = 'default' ) {
echo _x( $text, $context, $domain );
}
/**
* Translates string with gettext context, and escapes it for safe use in an attribute.
*
* If there is no translation, or the text domain isn't loaded, the original text
* is escaped and returned.
*
* @since 2.8.0
*
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text.
*/
function esc_attr_x( $text, $context, $domain = 'default' ) {
return esc_attr( translate_with_gettext_context( $text, $context, $domain ) );
}
/**
* Translates string with gettext context, and escapes it for safe use in HTML output.
*
* If there is no translation, or the text domain isn't loaded, the original text
* is escaped and returned.
*
* @since 2.9.0
*
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated text.
*/
function esc_html_x( $text, $context, $domain = 'default' ) {
return esc_html( translate_with_gettext_context( $text, $context, $domain ) );
}
/**
* Translates and retrieves the singular or plural form based on the supplied number.
*
* Used when you want to use the appropriate form of a string based on whether a
* number is singular or plural.
*
* Example:
*
* printf( _n( '%s person', '%s people', $count, 'text-domain' ), number_format_i18n( $count ) );
*
* @since 2.8.0
* @since 5.5.0 Introduced `ngettext-{$domain}` filter.
*
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param int $number The number to compare against to use either the singular or plural form.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string The translated singular or plural form.
*/
function _n( $single, $plural, $number, $domain = 'default' ) {
$translations = get_translations_for_domain( $domain );
$translation = $translations->translate_plural( $single, $plural, $number );
/**
* Filters the singular or plural form of a string.
*
* @since 2.2.0
*
* @param string $translation Translated text.
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param int $number The number to compare against to use either the singular or plural form.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain );
/**
* Filters the singular or plural form of a string for a domain.
*
* The dynamic portion of the hook name, `$domain`, refers to the text domain.
*
* @since 5.5.0
*
* @param string $translation Translated text.
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param int $number The number to compare against to use either the singular or plural form.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( "ngettext_{$domain}", $translation, $single, $plural, $number, $domain );
return $translation;
}
/**
* Translates and retrieves the singular or plural form based on the supplied number, with gettext context.
*
* This is a hybrid of _n() and _x(). It supports context and plurals.
*
* Used when you want to use the appropriate form of a string with context based on whether a
* number is singular or plural.
*
* Example of a generic phrase which is disambiguated via the context parameter:
*
* printf( _nx( '%s group', '%s groups', $people, 'group of people', 'text-domain' ), number_format_i18n( $people ) );
* printf( _nx( '%s group', '%s groups', $animals, 'group of animals', 'text-domain' ), number_format_i18n( $animals ) );
*
* @since 2.8.0
* @since 5.5.0 Introduced `ngettext_with_context-{$domain}` filter.
*
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param int $number The number to compare against to use either the singular or plural form.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string The translated singular or plural form.
*/
function _nx( $single, $plural, $number, $context, $domain = 'default' ) {
$translations = get_translations_for_domain( $domain );
$translation = $translations->translate_plural( $single, $plural, $number, $context );
/**
* Filters the singular or plural form of a string with gettext context.
*
* @since 2.8.0
*
* @param string $translation Translated text.
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param int $number The number to compare against to use either the singular or plural form.
* @param string $context Context information for the translators.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain );
/**
* Filters the singular or plural form of a string with gettext context for a domain.
*
* The dynamic portion of the hook name, `$domain`, refers to the text domain.
*
* @since 5.5.0
*
* @param string $translation Translated text.
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param int $number The number to compare against to use either the singular or plural form.
* @param string $context Context information for the translators.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$translation = apply_filters( "ngettext_with_context_{$domain}", $translation, $single, $plural, $number, $context, $domain );
return $translation;
}
/**
* Registers plural strings in POT file, but does not translate them.
*
* Used when you want to keep structures with translatable plural
* strings and use them later when the number is known.
*
* Example:
*
* $message = _n_noop( '%s post', '%s posts', 'text-domain' );
* ...
* printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );
*
* @since 2.5.0
*
* @param string $singular Singular form to be localized.
* @param string $plural Plural form to be localized.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default null.
* @return array {
* Array of translation information for the strings.
*
* @type string $0 Singular form to be localized. No longer used.
* @type string $1 Plural form to be localized. No longer used.
* @type string $singular Singular form to be localized.
* @type string $plural Plural form to be localized.
* @type null $context Context information for the translators.
* @type string|null $domain Text domain.
* }
*/
function _n_noop( $singular, $plural, $domain = null ) {
return array(
0 => $singular,
1 => $plural,
'singular' => $singular,
'plural' => $plural,
'context' => null,
'domain' => $domain,
);
}
/**
* Registers plural strings with gettext context in POT file, but does not translate them.
*
* Used when you want to keep structures with translatable plural
* strings and use them later when the number is known.
*
* Example of a generic phrase which is disambiguated via the context parameter:
*
* $messages = array(
* 'people' => _nx_noop( '%s group', '%s groups', 'people', 'text-domain' ),
* 'animals' => _nx_noop( '%s group', '%s groups', 'animals', 'text-domain' ),
* );
* ...
* $message = $messages[ $type ];
* printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );
*
* @since 2.8.0
*
* @param string $singular Singular form to be localized.
* @param string $plural Plural form to be localized.
* @param string $context Context information for the translators.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default null.
* @return array {
* Array of translation information for the strings.
*
* @type string $0 Singular form to be localized. No longer used.
* @type string $1 Plural form to be localized. No longer used.
* @type string $2 Context information for the translators. No longer used.
* @type string $singular Singular form to be localized.
* @type string $plural Plural form to be localized.
* @type string $context Context information for the translators.
* @type string|null $domain Text domain.
* }
*/
function _nx_noop( $singular, $plural, $context, $domain = null ) {
return array(
0 => $singular,
1 => $plural,
2 => $context,
'singular' => $singular,
'plural' => $plural,
'context' => $context,
'domain' => $domain,
);
}
/**
* Translates and returns the singular or plural form of a string that's been registered
* with _n_noop() or _nx_noop().
*
* Used when you want to use a translatable plural string once the number is known.
*
* Example:
*
* $message = _n_noop( '%s post', '%s posts', 'text-domain' );
* ...
* printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );
*
* @since 3.1.0
*
* @param array $nooped_plural {
* Array that is usually a return value from _n_noop() or _nx_noop().
*
* @type string $singular Singular form to be localized.
* @type string $plural Plural form to be localized.
* @type string|null $context Context information for the translators.
* @type string|null $domain Text domain.
* }
* @param int $count Number of objects.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. If $nooped_plural contains
* a text domain passed to _n_noop() or _nx_noop(), it will override this value. Default 'default'.
* @return string Either $singular or $plural translated text.
*/
function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) {
if ( $nooped_plural['domain'] ) {
$domain = $nooped_plural['domain'];
}
if ( $nooped_plural['context'] ) {
return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain );
} else {
return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain );
}
}
/**
* Loads a .mo file into the text domain $domain.
*
* If the text domain already exists, the translations will be merged. If both
* sets have the same string, the translation from the original value will be taken.
*
* On success, the .mo file will be placed in the $l10n global by $domain
* and will be a MO object.
*
* @since 1.5.0
* @since 6.1.0 Added the `$locale` parameter.
*
* @global MO[] $l10n An array of all currently loaded text domains.
* @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again.
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the .mo file.
* @param string $locale Optional. Locale. Default is the current locale.
* @return bool True on success, false on failure.
*/
function load_textdomain( $domain, $mofile, $locale = null ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */
global $l10n, $l10n_unloaded, $wp_textdomain_registry;
$l10n_unloaded = (array) $l10n_unloaded;
if ( ! is_string( $domain ) ) {
return false;
}
/**
* Filters whether to short-circuit loading .mo file.
*
* Returning a non-null value from the filter will effectively short-circuit
* the loading, returning the passed value instead.
*
* @since 6.3.0
*
* @param bool|null $loaded The result of loading a .mo file. Default null.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the MO file.
* @param string|null $locale Locale.
*/
$loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale );
if ( null !== $loaded ) {
if ( true === $loaded ) {
unset( $l10n_unloaded[ $domain ] );
}
return $loaded;
}
/**
* Filters whether to override the .mo file loading.
*
* @since 2.9.0
* @since 6.2.0 Added the `$locale` parameter.
*
* @param bool $override Whether to override the .mo file loading. Default false.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the MO file.
* @param string|null $locale Locale.
*/
$plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile, $locale );
if ( true === (bool) $plugin_override ) {
unset( $l10n_unloaded[ $domain ] );
return true;
}
/**
* Fires before the MO translation file is loaded.
*
* @since 2.9.0
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the .mo file.
*/
do_action( 'load_textdomain', $domain, $mofile );
/**
* Filters MO file path for loading translations for a specific text domain.
*
* @since 2.9.0
*
* @param string $mofile Path to the MO file.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
*/
$mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );
if ( ! $locale ) {
$locale = determine_locale();
}
$i18n_controller = WP_Translation_Controller::get_instance();
// Ensures the correct locale is set as the current one, in case it was filtered.
$i18n_controller->set_locale( $locale );
/**
* Filters the preferred file format for translation files.
*
* Can be used to disable the use of PHP files for translations.
*
* @since 6.5.0
*
* @param string $preferred_format Preferred file format. Possible values: 'php', 'mo'. Default: 'php'.
* @param string $domain The text domain.
*/
$preferred_format = apply_filters( 'translation_file_format', 'php', $domain );
if ( ! in_array( $preferred_format, array( 'php', 'mo' ), true ) ) {
$preferred_format = 'php';
}
$translation_files = array();
if ( 'mo' !== $preferred_format ) {
$translation_files[] = substr_replace( $mofile, ".l10n.$preferred_format", - strlen( '.mo' ) );
}
$translation_files[] = $mofile;
foreach ( $translation_files as $file ) {
/**
* Filters the file path for loading translations for the given text domain.
*
* Similar to the {@see 'load_textdomain_mofile'} filter with the difference that
* the file path could be for an MO or PHP file.
*
* @since 6.5.0
* @since 6.6.0 Added the `$locale` parameter.
*
* @param string $file Path to the translation file to load.
* @param string $domain The text domain.
* @param string $locale The locale.
*/
$file = (string) apply_filters( 'load_translation_file', $file, $domain, $locale );
$success = $i18n_controller->load_file( $file, $domain, $locale );
if ( $success ) {
if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof MO ) {
$i18n_controller->load_file( $l10n[ $domain ]->get_filename(), $domain, $locale );
}
// Unset NOOP_Translations reference in get_translations_for_domain().
unset( $l10n[ $domain ] );
$l10n[ $domain ] = new WP_Translations( $i18n_controller, $domain );
$wp_textdomain_registry->set( $domain, $locale, dirname( $file ) );
return true;
}
}
return false;
}
/**
* Unloads translations for a text domain.
*
* @since 3.0.0
* @since 6.1.0 Added the `$reloadable` parameter.
*
* @global MO[] $l10n An array of all currently loaded text domains.
* @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param bool $reloadable Whether the text domain can be loaded just-in-time again.
* @return bool Whether textdomain was unloaded.
*/
function unload_textdomain( $domain, $reloadable = false ) {
global $l10n, $l10n_unloaded;
$l10n_unloaded = (array) $l10n_unloaded;
/**
* Filters whether to override the text domain unloading.
*
* @since 3.0.0
* @since 6.1.0 Added the `$reloadable` parameter.
*
* @param bool $override Whether to override the text domain unloading. Default false.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param bool $reloadable Whether the text domain can be loaded just-in-time again.
*/
$plugin_override = apply_filters( 'override_unload_textdomain', false, $domain, $reloadable );
if ( $plugin_override ) {
if ( ! $reloadable ) {
$l10n_unloaded[ $domain ] = true;
}
return true;
}
/**
* Fires before the text domain is unloaded.
*
* @since 3.0.0
* @since 6.1.0 Added the `$reloadable` parameter.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param bool $reloadable Whether the text domain can be loaded just-in-time again.
*/
do_action( 'unload_textdomain', $domain, $reloadable );
// Since multiple locales are supported, reloadable text domains don't actually need to be unloaded.
if ( ! $reloadable ) {
WP_Translation_Controller::get_instance()->unload_textdomain( $domain );
}
if ( isset( $l10n[ $domain ] ) ) {
if ( $l10n[ $domain ] instanceof NOOP_Translations ) {
unset( $l10n[ $domain ] );
return false;
}
unset( $l10n[ $domain ] );
if ( ! $reloadable ) {
$l10n_unloaded[ $domain ] = true;
}
return true;
}
return false;
}
/**
* Loads default translated strings based on locale.
*
* Loads the .mo file in WP_LANG_DIR constant path from WordPress root.
* The translated (.mo) file is named based on the locale.
*
* @see load_textdomain()
*
* @since 1.5.0
*
* @param string $locale Optional. Locale to load. Default is the value of get_locale().
* @return bool Whether the textdomain was loaded.
*/
function load_default_textdomain( $locale = null ) {
if ( null === $locale ) {
$locale = determine_locale();
}
// Unload previously loaded strings so we can switch translations.
unload_textdomain( 'default', true );
$return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo", $locale );
if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists( WP_LANG_DIR . "/admin-$locale.mo" ) ) {
load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo", $locale );
return $return;
}
if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) ) {
load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo", $locale );
}
if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) {
load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo", $locale );
}
return $return;
}
/**
* Loads a plugin's translated strings.
*
* If the path is not given then it will be the root of the plugin directory.
*
* The .mo file should be named based on the text domain with a dash, and then the locale exactly.
*
* @since 1.5.0
* @since 4.6.0 The function now tries to load the .mo file from the languages directory first.
* @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
*
* @param string $domain Unique identifier for retrieving translated strings
* @param string|false $deprecated Optional. Deprecated. Use the $plugin_rel_path parameter instead.
* Default false.
* @param string|false $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR where the .mo file resides.
* Default false.
* @return bool True when textdomain is successfully loaded, false otherwise.
*/
function load_plugin_textdomain( $domain, $deprecated = false, $plugin_rel_path = false ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */
global $wp_textdomain_registry;
if ( ! is_string( $domain ) ) {
return false;
}
if ( false !== $plugin_rel_path ) {
$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
} elseif ( false !== $deprecated ) {
_deprecated_argument( __FUNCTION__, '2.7.0' );
$path = ABSPATH . trim( $deprecated, '/' );
} else {
$path = WP_PLUGIN_DIR;
}
$wp_textdomain_registry->set_custom_path( $domain, $path );
return true;
}
/**
* Loads the translated strings for a plugin residing in the mu-plugins directory.
*
* @since 3.0.0
* @since 4.6.0 The function now tries to load the .mo file from the languages directory first.
* @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
*
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mu_plugin_rel_path Optional. Relative to `WPMU_PLUGIN_DIR` directory in which the .mo
* file resides. Default empty string.
* @return bool True when textdomain is successfully loaded, false otherwise.
*/
function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */
global $wp_textdomain_registry;
if ( ! is_string( $domain ) ) {
return false;
}
$path = WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' );
$wp_textdomain_registry->set_custom_path( $domain, $path );
return true;
}
/**
* Loads the theme's translated strings.
*
* If the current locale exists as a .mo file in the theme's root directory, it
* will be included in the translated strings by the $domain.
*
* The .mo files must be named based on the locale exactly.
*
* @since 1.5.0
* @since 4.6.0 The function now tries to load the .mo file from the languages directory first.
* @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism.
*
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string|false $path Optional. Path to the directory containing the .mo file.
* Default false.
* @return bool True when textdomain is successfully loaded, false otherwise.
*/
function load_theme_textdomain( $domain, $path = false ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */
global $wp_textdomain_registry;
if ( ! is_string( $domain ) ) {
return false;
}
if ( ! $path ) {
$path = get_template_directory();
}
$wp_textdomain_registry->set_custom_path( $domain, $path );
return true;
}
/**
* Loads the child theme's translated strings.
*
* If the current locale exists as a .mo file in the child theme's
* root directory, it will be included in the translated strings by the $domain.
*
* The .mo files must be named based on the locale exactly.
*
* @since 2.9.0
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string|false $path Optional. Path to the directory containing the .mo file.
* Default false.
* @return bool True when the theme textdomain is successfully loaded, false otherwise.
*/
function load_child_theme_textdomain( $domain, $path = false ) {
if ( ! $path ) {
$path = get_stylesheet_directory();
}
return load_theme_textdomain( $domain, $path );
}
/**
* Loads the script translated strings.
*
* @since 5.0.0
* @since 5.0.2 Uses load_script_translations() to load translation data.
* @since 5.1.0 The `$domain` parameter was made optional.
*
* @see WP_Scripts::set_translations()
*
* @param string $handle Name of the script to register a translation domain to.
* @param string $domain Optional. Text domain. Default 'default'.
* @param string $path Optional. The full file path to the directory containing translation files.
* @return string|false The translated strings in JSON encoding on success,
* false if the script textdomain could not be loaded.
*/
function load_script_textdomain( $handle, $domain = 'default', $path = '' ) {
$wp_scripts = wp_scripts();
if ( ! isset( $wp_scripts->registered[ $handle ] ) ) {
return false;
}
$path = untrailingslashit( $path );
$locale = determine_locale();
// If a path was given and the handle file exists simply return it.
$file_base = 'default' === $domain ? $locale : $domain . '-' . $locale;
$handle_filename = $file_base . '-' . $handle . '.json';
if ( $path ) {
$translations = load_script_translations( $path . '/' . $handle_filename, $handle, $domain );
if ( $translations ) {
return $translations;
}
}
$src = $wp_scripts->registered[ $handle ]->src;
if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $wp_scripts->content_url && str_starts_with( $src, $wp_scripts->content_url ) ) ) {
$src = $wp_scripts->base_url . $src;
}
$relative = false;
$languages_path = WP_LANG_DIR;
$src_url = wp_parse_url( $src );
$content_url = wp_parse_url( content_url() );
$plugins_url = wp_parse_url( plugins_url() );
$site_url = wp_parse_url( site_url() );
$theme_root = get_theme_root();
// If the host is the same or it's a relative URL.
if (
( ! isset( $content_url['path'] ) || str_starts_with( $src_url['path'], $content_url['path'] ) ) &&
( ! isset( $src_url['host'] ) || ! isset( $content_url['host'] ) || $src_url['host'] === $content_url['host'] )
) {
// Make the src relative the specific plugin or theme.
if ( isset( $content_url['path'] ) ) {
$relative = substr( $src_url['path'], strlen( $content_url['path'] ) );
} else {
$relative = $src_url['path'];
}
$relative = trim( $relative, '/' );
$relative = explode( '/', $relative );
/*
* Ensure correct languages path when using a custom `WP_PLUGIN_DIR` / `WP_PLUGIN_URL` configuration,
* a custom theme root, and/or using Multisite with subdirectories.
* See https://core.trac.wordpress.org/ticket/60891 and https://core.trac.wordpress.org/ticket/62016.
*/
$theme_dir = array_slice( explode( '/', $theme_root ), -1 );
$dirname = $theme_dir[0] === $relative[0] ? 'themes' : 'plugins';
$languages_path = WP_LANG_DIR . '/' . $dirname;
$relative = array_slice( $relative, 2 ); // Remove plugins/<plugin name> or themes/<theme name>.
$relative = implode( '/', $relative );
} elseif (
( ! isset( $plugins_url['path'] ) || str_starts_with( $src_url['path'], $plugins_url['path'] ) ) &&
( ! isset( $src_url['host'] ) || ! isset( $plugins_url['host'] ) || $src_url['host'] === $plugins_url['host'] )
) {
// Make the src relative the specific plugin.
if ( isset( $plugins_url['path'] ) ) {
$relative = substr( $src_url['path'], strlen( $plugins_url['path'] ) );
} else {
$relative = $src_url['path'];
}
$relative = trim( $relative, '/' );
$relative = explode( '/', $relative );
$languages_path = WP_LANG_DIR . '/plugins';
$relative = array_slice( $relative, 1 ); // Remove <plugin name>.
$relative = implode( '/', $relative );
} elseif ( ! isset( $src_url['host'] ) || ! isset( $site_url['host'] ) || $src_url['host'] === $site_url['host'] ) {
if ( ! isset( $site_url['path'] ) ) {
$relative = trim( $src_url['path'], '/' );
} elseif ( str_starts_with( $src_url['path'], trailingslashit( $site_url['path'] ) ) ) {
// Make the src relative to the WP root.
$relative = substr( $src_url['path'], strlen( $site_url['path'] ) );
$relative = trim( $relative, '/' );
}
}
/**
* Filters the relative path of scripts used for finding translation files.
*
* @since 5.0.2
*
* @param string|false $relative The relative path of the script. False if it could not be determined.
* @param string $src The full source URL of the script.
*/
$relative = apply_filters( 'load_script_textdomain_relative_path', $relative, $src );
// If the source is not from WP.
if ( false === $relative ) {
return load_script_translations( false, $handle, $domain );
}
// Translations are always based on the unminified filename.
if ( str_ends_with( $relative, '.min.js' ) ) {
$relative = substr( $relative, 0, -7 ) . '.js';
}
$md5_filename = $file_base . '-' . md5( $relative ) . '.json';
if ( $path ) {
$translations = load_script_translations( $path . '/' . $md5_filename, $handle, $domain );
if ( $translations ) {
return $translations;
}
}
$translations = load_script_translations( $languages_path . '/' . $md5_filename, $handle, $domain );
if ( $translations ) {
return $translations;
}
return load_script_translations( false, $handle, $domain );
}
/**
* Loads the translation data for the given script handle and text domain.
*
* @since 5.0.2
*
* @param string|false $file Path to the translation file to load. False if there isn't one.
* @param string $handle Name of the script to register a translation domain to.
* @param string $domain The text domain.
* @return string|false The JSON-encoded translated strings for the given script handle and text domain.
* False if there are none.
*/
function load_script_translations( $file, $handle, $domain ) {
/**
* Pre-filters script translations for the given file, script handle and text domain.
*
* Returning a non-null value allows to override the default logic, effectively short-circuiting the function.
*
* @since 5.0.2
*
* @param string|false|null $translations JSON-encoded translation data. Default null.
* @param string|false $file Path to the translation file to load. False if there isn't one.
* @param string $handle Name of the script to register a translation domain to.
* @param string $domain The text domain.
*/
$translations = apply_filters( 'pre_load_script_translations', null, $file, $handle, $domain );
if ( null !== $translations ) {
return $translations;
}
/**
* Filters the file path for loading script translations for the given script handle and text domain.
*
* @since 5.0.2
*
* @param string|false $file Path to the translation file to load. False if there isn't one.
* @param string $handle Name of the script to register a translation domain to.
* @param string $domain The text domain.
*/
$file = apply_filters( 'load_script_translation_file', $file, $handle, $domain );
if ( ! $file || ! is_readable( $file ) ) {
return false;
}
$translations = file_get_contents( $file );
/**
* Filters script translations for the given file, script handle and text domain.
*
* @since 5.0.2
*
* @param string $translations JSON-encoded translation data.
* @param string $file Path to the translation file that was loaded.
* @param string $handle Name of the script to register a translation domain to.
* @param string $domain The text domain.
*/
return apply_filters( 'load_script_translations', $translations, $file, $handle, $domain );
}
/**
* Loads plugin and theme text domains just-in-time.
*
* When a textdomain is encountered for the first time, we try to load
* the translation file from `wp-content/languages`, removing the need
* to call load_plugin_textdomain() or load_theme_textdomain().
*
* @since 4.6.0
* @access private
*
* @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again.
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @return bool True when the textdomain is successfully loaded, false otherwise.
*/
function _load_textdomain_just_in_time( $domain ) {
/** @var WP_Textdomain_Registry $wp_textdomain_registry */
global $l10n_unloaded, $wp_textdomain_registry;
$l10n_unloaded = (array) $l10n_unloaded;
// Short-circuit if domain is 'default' which is reserved for core.
if ( 'default' === $domain || isset( $l10n_unloaded[ $domain ] ) ) {
return false;
}
if ( ! $wp_textdomain_registry->has( $domain ) ) {
return false;
}
$locale = determine_locale();
$path = $wp_textdomain_registry->get( $domain, $locale );
if ( ! $path ) {
return false;
}
if ( ! doing_action( 'after_setup_theme' ) && ! did_action( 'after_setup_theme' ) ) {
_doing_it_wrong(
__FUNCTION__,
sprintf(
/* translators: 1: The text domain. 2: 'init'. */
__( 'Translation loading for the %1$s domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the %2$s action or later.' ),
'<code>' . $domain . '</code>',
'<code>init</code>'
),
'6.7.0'
);
}
// Themes with their language directory outside of WP_LANG_DIR have a different file name.
$template_directory = trailingslashit( get_template_directory() );
$stylesheet_directory = trailingslashit( get_stylesheet_directory() );
if ( str_starts_with( $path, $template_directory ) || str_starts_with( $path, $stylesheet_directory ) ) {
$mofile = "{$path}{$locale}.mo";
} else {
$mofile = "{$path}{$domain}-{$locale}.mo";
}
return load_textdomain( $domain, $mofile, $locale );
}
/**
* Returns the Translations instance for a text domain.
*
* If there isn't one, returns empty Translations instance.
*
* @since 2.8.0
*
* @global MO[] $l10n An array of all currently loaded text domains.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @return Translations|NOOP_Translations A Translations instance.
*/
function get_translations_for_domain( $domain ) {
global $l10n;
if ( isset( $l10n[ $domain ] ) || ( _load_textdomain_just_in_time( $domain ) && isset( $l10n[ $domain ] ) ) ) {
return $l10n[ $domain ];
}
static $noop_translations = null;
if ( null === $noop_translations ) {
$noop_translations = new NOOP_Translations();
}
$l10n[ $domain ] = &$noop_translations;
return $noop_translations;
}
/**
* Determines whether there are translations for the text domain.
*
* @since 3.0.0
*
* @global MO[] $l10n An array of all currently loaded text domains.
*
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @return bool Whether there are translations.
*/
function is_textdomain_loaded( $domain ) {
global $l10n;
return isset( $l10n[ $domain ] ) && ! $l10n[ $domain ] instanceof NOOP_Translations;
}
/**
* Translates role name.
*
* Since the role names are in the database and not in the source there
* are dummy gettext calls to get them into the POT file and this function
* properly translates them back.
*
* The before_last_bar() call is needed, because older installations keep the roles
* using the old context format: 'Role name|User role' and just skipping the
* content after the last bar is easier than fixing them in the DB. New installations
* won't suffer from that problem.
*
* @since 2.8.0
* @since 5.2.0 Added the `$domain` parameter.
*
* @param string $name The role name.
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
* Default 'default'.
* @return string Translated role name on success, original name on failure.
*/
function translate_user_role( $name, $domain = 'default' ) {
return translate_with_gettext_context( before_last_bar( $name ), 'User role', $domain );
}
/**
* Gets all available languages based on the presence of *.mo and *.l10n.php files in a given directory.
*
* The default directory is WP_LANG_DIR.
*
* @since 3.0.0
* @since 4.7.0 The results are now filterable with the {@see 'get_available_languages'} filter.
* @since 6.5.0 The initial file list is now cached and also takes into account *.l10n.php files.
*
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $dir A directory to search for language files.
* Default WP_LANG_DIR.
* @return string[] An array of language codes or an empty array if no languages are present.
* Language codes are formed by stripping the file extension from the language file names.
*/
function get_available_languages( $dir = null ) {
global $wp_textdomain_registry;
$languages = array();
$path = is_null( $dir ) ? WP_LANG_DIR : $dir;
$lang_files = $wp_textdomain_registry->get_language_files_from_path( $path );
if ( $lang_files ) {
foreach ( $lang_files as $lang_file ) {
$lang_file = basename( $lang_file, '.mo' );
$lang_file = basename( $lang_file, '.l10n.php' );
if ( ! str_starts_with( $lang_file, 'continents-cities' ) && ! str_starts_with( $lang_file, 'ms-' ) &&
! str_starts_with( $lang_file, 'admin-' ) ) {
$languages[] = $lang_file;
}
}
}
/**
* Filters the list of available language codes.
*
* @since 4.7.0
*
* @param string[] $languages An array of available language codes.
* @param string $dir The directory where the language files were found.
*/
return apply_filters( 'get_available_languages', array_unique( $languages ), $dir );
}
/**
* Gets installed translations.
*
* Looks in the wp-content/languages directory for translations of
* plugins or themes.
*
* @since 3.7.0
*
* @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
*
* @param string $type What to search for. Accepts 'plugins', 'themes', 'core'.
* @return array Array of language data.
*/
function wp_get_installed_translations( $type ) {
global $wp_textdomain_registry;
if ( 'themes' !== $type && 'plugins' !== $type && 'core' !== $type ) {
return array();
}
$dir = 'core' === $type ? WP_LANG_DIR : WP_LANG_DIR . "/$type";
if ( ! is_dir( $dir ) ) {
return array();
}
$files = $wp_textdomain_registry->get_language_files_from_path( $dir );
if ( ! $files ) {
return array();
}
$language_data = array();
foreach ( $files as $file ) {
if ( ! preg_match( '/(?:(.+)-)?([a-z]{2,3}(?:_[A-Z]{2})?(?:_[a-z0-9]+)?)\.(?:mo|l10n\.php)/', basename( $file ), $match ) ) {
continue;
}
list( , $textdomain, $language ) = $match;
if ( '' === $textdomain ) {
$textdomain = 'default';
}
if ( str_ends_with( $file, '.mo' ) ) {
$pofile = substr_replace( $file, '.po', - strlen( '.mo' ) );
if ( ! file_exists( $pofile ) ) {
continue;
}
$language_data[ $textdomain ][ $language ] = wp_get_pomo_file_data( $pofile );
} else {
$pofile = substr_replace( $file, '.po', - strlen( '.l10n.php' ) );
// If both a PO and a PHP file exist, prefer the PO file.
if ( file_exists( $pofile ) ) {
continue;
}
$language_data[ $textdomain ][ $language ] = wp_get_l10n_php_file_data( $file );
}
}
return $language_data;
}
/**
* Extracts headers from a PO file.
*
* @since 3.7.0
*
* @param string $po_file Path to PO file.
* @return string[] Array of PO file header values keyed by header name.
*/
function wp_get_pomo_file_data( $po_file ) {
$headers = get_file_data(
$po_file,
array(
'POT-Creation-Date' => '"POT-Creation-Date',
'PO-Revision-Date' => '"PO-Revision-Date',
'Project-Id-Version' => '"Project-Id-Version',
'X-Generator' => '"X-Generator',
)
);
foreach ( $headers as $header => $value ) {
// Remove possible contextual '\n' and closing double quote.
$headers[ $header ] = preg_replace( '~(\\\n)?"$~', '', $value );
}
return $headers;
}
/**
* Extracts headers from a PHP translation file.
*
* @since 6.6.0
*
* @param string $php_file Path to a `.l10n.php` file.
* @return string[] Array of file header values keyed by header name.
*/
function wp_get_l10n_php_file_data( $php_file ) {
$data = (array) include $php_file;
unset( $data['messages'] );
$headers = array(
'POT-Creation-Date' => 'pot-creation-date',
'PO-Revision-Date' => 'po-revision-date',
'Project-Id-Version' => 'project-id-version',
'X-Generator' => 'x-generator',
);
$result = array(
'POT-Creation-Date' => '',
'PO-Revision-Date' => '',
'Project-Id-Version' => '',
'X-Generator' => '',
);
foreach ( $headers as $po_header => $php_header ) {
if ( isset( $data[ $php_header ] ) ) {
$result[ $po_header ] = $data[ $php_header ];
}
}
return $result;
}
/**
* Displays or returns a Language selector.
*
* @since 4.0.0
* @since 4.3.0 Introduced the `echo` argument.
* @since 4.7.0 Introduced the `show_option_site_default` argument.
* @since 5.1.0 Introduced the `show_option_en_us` argument.
* @since 5.9.0 Introduced the `explicit_option_en_us` argument.
*
* @see get_available_languages()
* @see wp_get_available_translations()
*
* @param string|array $args {
* Optional. Array or string of arguments for outputting the language selector.
*
* @type string $id ID attribute of the select element. Default 'locale'.
* @type string $name Name attribute of the select element. Default 'locale'.
* @type string[] $languages List of installed languages, contain only the locales.
* Default empty array.
* @type array $translations List of available translations. Default result of
* wp_get_available_translations().
* @type string $selected Language which should be selected. Default empty.
* @type bool|int $echo Whether to echo the generated markup. Accepts 0, 1, or their
* boolean equivalents. Default 1.
* @type bool $show_available_translations Whether to show available translations. Default true.
* @type bool $show_option_site_default Whether to show an option to fall back to the site's locale. Default false.
* @type bool $show_option_en_us Whether to show an option for English (United States). Default true.
* @type bool $explicit_option_en_us Whether the English (United States) option uses an explicit value of en_US
* instead of an empty value. Default false.
* }
* @return string HTML dropdown list of languages.
*/
function wp_dropdown_languages( $args = array() ) {
$parsed_args = wp_parse_args(
$args,
array(
'id' => 'locale',
'name' => 'locale',
'languages' => array(),
'translations' => array(),
'selected' => '',
'echo' => 1,
'show_available_translations' => true,
'show_option_site_default' => false,
'show_option_en_us' => true,
'explicit_option_en_us' => false,
)
);
// Bail if no ID or no name.
if ( ! $parsed_args['id'] || ! $parsed_args['name'] ) {
return;
}
// English (United States) uses an empty string for the value attribute.
if ( 'en_US' === $parsed_args['selected'] && ! $parsed_args['explicit_option_en_us'] ) {
$parsed_args['selected'] = '';
}
$translations = $parsed_args['translations'];
if ( empty( $translations ) ) {
require_once ABSPATH . 'wp-admin/includes/translation-install.php';
$translations = wp_get_available_translations();
}
/*
* $parsed_args['languages'] should only contain the locales. Find the locale in
* $translations to get the native name. Fall back to locale.
*/
$languages = array();
foreach ( $parsed_args['languages'] as $locale ) {
if ( isset( $translations[ $locale ] ) ) {
$translation = $translations[ $locale ];
$languages[] = array(
'language' => $translation['language'],
'native_name' => $translation['native_name'],
'lang' => current( $translation['iso'] ),
);
// Remove installed language from available translations.
unset( $translations[ $locale ] );
} else {
$languages[] = array(
'language' => $locale,
'native_name' => $locale,
'lang' => '',
);
}
}
$translations_available = ( ! empty( $translations ) && $parsed_args['show_available_translations'] );
// Holds the HTML markup.
$structure = array();
// List installed languages.
if ( $translations_available ) {
$structure[] = '<optgroup label="' . esc_attr_x( 'Installed', 'translations' ) . '">';
}
// Site default.
if ( $parsed_args['show_option_site_default'] ) {
$structure[] = sprintf(
'<option value="site-default" data-installed="1"%s>%s</option>',
selected( 'site-default', $parsed_args['selected'], false ),
_x( 'Site Default', 'default site language' )
);
}
if ( $parsed_args['show_option_en_us'] ) {
$value = ( $parsed_args['explicit_option_en_us'] ) ? 'en_US' : '';
$structure[] = sprintf(
'<option value="%s" lang="en" data-installed="1"%s>English (United States)</option>',
esc_attr( $value ),
selected( '', $parsed_args['selected'], false )
);
}
// List installed languages.
foreach ( $languages as $language ) {
$structure[] = sprintf(
'<option value="%s" lang="%s"%s data-installed="1">%s</option>',
esc_attr( $language['language'] ),
esc_attr( $language['lang'] ),
selected( $language['language'], $parsed_args['selected'], false ),
esc_html( $language['native_name'] )
);
}
if ( $translations_available ) {
$structure[] = '</optgroup>';
}
// List available translations.
if ( $translations_available ) {
$structure[] = '<optgroup label="' . esc_attr_x( 'Available', 'translations' ) . '">';
foreach ( $translations as $translation ) {
$structure[] = sprintf(
'<option value="%s" lang="%s"%s>%s</option>',
esc_attr( $translation['language'] ),
esc_attr( current( $translation['iso'] ) ),
selected( $translation['language'], $parsed_args['selected'], false ),
esc_html( $translation['native_name'] )
);
}
$structure[] = '</optgroup>';
}
// Combine the output string.
$output = sprintf( '<select name="%s" id="%s">', esc_attr( $parsed_args['name'] ), esc_attr( $parsed_args['id'] ) );
$output .= implode( "\n", $structure );
$output .= '</select>';
if ( $parsed_args['echo'] ) {
echo $output;
}
return $output;
}
/**
* Determines whether the current locale is right-to-left (RTL).
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 3.0.0
*
* @global WP_Locale $wp_locale WordPress date and time locale object.
*
* @return bool Whether locale is RTL.
*/
function is_rtl() {
global $wp_locale;
if ( ! ( $wp_locale instanceof WP_Locale ) ) {
return false;
}
return $wp_locale->is_rtl();
}
/**
* Switches the translations according to the given locale.
*
* @since 4.7.0
*
* @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
*
* @param string $locale The locale.
* @return bool True on success, false on failure.
*/
function switch_to_locale( $locale ) {
/* @var WP_Locale_Switcher $wp_locale_switcher */
global $wp_locale_switcher;
if ( ! $wp_locale_switcher ) {
return false;
}
return $wp_locale_switcher->switch_to_locale( $locale );
}
/**
* Switches the translations according to the given user's locale.
*
* @since 6.2.0
*
* @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
*
* @param int $user_id User ID.
* @return bool True on success, false on failure.
*/
function switch_to_user_locale( $user_id ) {
/* @var WP_Locale_Switcher $wp_locale_switcher */
global $wp_locale_switcher;
if ( ! $wp_locale_switcher ) {
return false;
}
return $wp_locale_switcher->switch_to_user_locale( $user_id );
}
/**
* Restores the translations according to the previous locale.
*
* @since 4.7.0
*
* @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
*
* @return string|false Locale on success, false on error.
*/
function restore_previous_locale() {
/* @var WP_Locale_Switcher $wp_locale_switcher */
global $wp_locale_switcher;
if ( ! $wp_locale_switcher ) {
return false;
}
return $wp_locale_switcher->restore_previous_locale();
}
/**
* Restores the translations according to the original locale.
*
* @since 4.7.0
*
* @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
*
* @return string|false Locale on success, false on error.
*/
function restore_current_locale() {
/* @var WP_Locale_Switcher $wp_locale_switcher */
global $wp_locale_switcher;
if ( ! $wp_locale_switcher ) {
return false;
}
return $wp_locale_switcher->restore_current_locale();
}
/**
* Determines whether switch_to_locale() is in effect.
*
* @since 4.7.0
*
* @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
*
* @return bool True if the locale has been switched, false otherwise.
*/
function is_locale_switched() {
/* @var WP_Locale_Switcher $wp_locale_switcher */
global $wp_locale_switcher;
return $wp_locale_switcher->is_switched();
}
/**
* Translates the provided settings value using its i18n schema.
*
* @since 5.9.0
* @access private
*
* @param string|string[]|array[]|object $i18n_schema I18n schema for the setting.
* @param string|string[]|array[] $settings Value for the settings.
* @param string $textdomain Textdomain to use with translations.
*
* @return string|string[]|array[] Translated settings.
*/
function translate_settings_using_i18n_schema( $i18n_schema, $settings, $textdomain ) {
if ( empty( $i18n_schema ) || empty( $settings ) || empty( $textdomain ) ) {
return $settings;
}
if ( is_string( $i18n_schema ) && is_string( $settings ) ) {
return translate_with_gettext_context( $settings, $i18n_schema, $textdomain );
}
if ( is_array( $i18n_schema ) && is_array( $settings ) ) {
$translated_settings = array();
foreach ( $settings as $value ) {
$translated_settings[] = translate_settings_using_i18n_schema( $i18n_schema[0], $value, $textdomain );
}
return $translated_settings;
}
if ( is_object( $i18n_schema ) && is_array( $settings ) ) {
$group_key = '*';
$translated_settings = array();
foreach ( $settings as $key => $value ) {
if ( isset( $i18n_schema->$key ) ) {
$translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$key, $value, $textdomain );
} elseif ( isset( $i18n_schema->$group_key ) ) {
$translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$group_key, $value, $textdomain );
} else {
$translated_settings[ $key ] = $value;
}
}
return $translated_settings;
}
return $settings;
}
/**
* Retrieves the list item separator based on the locale.
*
* @since 6.0.0
*
* @global WP_Locale $wp_locale WordPress date and time locale object.
*
* @return string Locale-specific list item separator.
*/
function wp_get_list_item_separator() {
global $wp_locale;
if ( ! ( $wp_locale instanceof WP_Locale ) ) {
// Default value of WP_Locale::get_list_item_separator().
/* translators: Used between list items, there is a space after the comma. */
return __( ', ' );
}
return $wp_locale->get_list_item_separator();
}
/**
* Retrieves the word count type based on the locale.
*
* @since 6.2.0
*
* @global WP_Locale $wp_locale WordPress date and time locale object.
*
* @return string Locale-specific word count type. Possible values are `characters_excluding_spaces`,
* `characters_including_spaces`, or `words`. Defaults to `words`.
*/
function wp_get_word_count_type() {
global $wp_locale;
if ( ! ( $wp_locale instanceof WP_Locale ) ) {
// Default value of WP_Locale::get_word_count_type().
return 'words';
}
return $wp_locale->get_word_count_type();
}
/**
* Returns a boolean to indicate whether a translation exists for a given string with optional text domain and locale.
*
* @since 6.7.0
*
* @param string $singular Singular translation to check.
* @param string $textdomain Optional. Text domain. Default 'default'.
* @param ?string $locale Optional. Locale. Default current locale.
* @return bool True if the translation exists, false otherwise.
*/
function has_translation( string $singular, string $textdomain = 'default', ?string $locale = null ): bool {
return WP_Translation_Controller::get_instance()->has_translation( $singular, $textdomain, $locale );
}