WP_Locale{}WP 2.1.0AllowDynamicProperties

Core class used to store translated data for a locale.

No Hooks.

Usage

$WP_Locale = new WP_Locale();
// use class methods

Examples

0

#1 Display the form with the selection of the month

There is no need to initialize the class, WP does it automatically. An instance of the class is in the global variable $wp_locale.

<?php
global $wp_locale;
?>

<form action="">
	<label for="month">Month</label>
	<select name="month" id="month">
		<option value="0" disabled selected>Select month</option>
		<?php
		foreach ( $wp_locale->month as $index => $month ) {
			printf( '<option value="%s">%s</option>', $index, $month );
		}
		?>
	</select>
</form>

For reference. The class is initialized with the following code:

$GLOBALS['wp_locale'] = new WP_Locale();

Changelog

Since 2.1.0 Introduced.
Since 4.6.0 Moved to its own file from wp-includes/locale.php.

WP_Locale{} code WP 6.5.3

class WP_Locale {
	/**
	 * Stores the translated strings for the full weekday names.
	 *
	 * @since 2.1.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $weekday = array();

	/**
	 * Stores the translated strings for the one character weekday names.
	 *
	 * There is a hack to make sure that Tuesday and Thursday, as well
	 * as Sunday and Saturday, don't conflict. See init() method for more.
	 *
	 * @see WP_Locale::init() for how to handle the hack.
	 *
	 * @since 2.1.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $weekday_initial = array();

	/**
	 * Stores the translated strings for the abbreviated weekday names.
	 *
	 * @since 2.1.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $weekday_abbrev = array();

	/**
	 * Stores the translated strings for the full month names.
	 *
	 * @since 2.1.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $month = array();

	/**
	 * Stores the translated strings for the month names in genitive case, if the locale specifies.
	 *
	 * @since 4.4.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $month_genitive = array();

	/**
	 * Stores the translated strings for the abbreviated month names.
	 *
	 * @since 2.1.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $month_abbrev = array();

	/**
	 * Stores the translated strings for 'am' and 'pm'.
	 *
	 * Also the capitalized versions.
	 *
	 * @since 2.1.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var string[]
	 */
	public $meridiem = array();

	/**
	 * The text direction of the locale language.
	 *
	 * Default is left to right 'ltr'.
	 *
	 * @since 2.1.0
	 * @var string
	 */
	public $text_direction = 'ltr';

	/**
	 * The thousands separator and decimal point values used for localizing numbers.
	 *
	 * @since 2.3.0
	 * @since 6.2.0 Initialized to an empty array.
	 * @var array
	 */
	public $number_format = array();

	/**
	 * The separator string used for localizing list item separator.
	 *
	 * @since 6.0.0
	 * @var string
	 */
	public $list_item_separator;

	/**
	 * The word count type of the locale language.
	 *
	 * Default is 'words'.
	 *
	 * @since 6.2.0
	 * @var string
	 */
	public $word_count_type;

	/**
	 * Constructor which calls helper methods to set up object variables.
	 *
	 * @since 2.1.0
	 */
	public function __construct() {
		$this->init();
		$this->register_globals();
	}

	/**
	 * Sets up the translated strings and object properties.
	 *
	 * The method creates the translatable strings for various
	 * calendar elements. Which allows for specifying locale
	 * specific calendar names and text direction.
	 *
	 * @since 2.1.0
	 *
	 * @global string $text_direction
	 */
	public function init() {
		// The weekdays.
		$this->weekday[0] = /* translators: Weekday. */ __( 'Sunday' );
		$this->weekday[1] = /* translators: Weekday. */ __( 'Monday' );
		$this->weekday[2] = /* translators: Weekday. */ __( 'Tuesday' );
		$this->weekday[3] = /* translators: Weekday. */ __( 'Wednesday' );
		$this->weekday[4] = /* translators: Weekday. */ __( 'Thursday' );
		$this->weekday[5] = /* translators: Weekday. */ __( 'Friday' );
		$this->weekday[6] = /* translators: Weekday. */ __( 'Saturday' );

		// The first letter of each day.
		$this->weekday_initial[ $this->weekday[0] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'S', 'Sunday initial' );
		$this->weekday_initial[ $this->weekday[1] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'M', 'Monday initial' );
		$this->weekday_initial[ $this->weekday[2] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'T', 'Tuesday initial' );
		$this->weekday_initial[ $this->weekday[3] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'W', 'Wednesday initial' );
		$this->weekday_initial[ $this->weekday[4] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'T', 'Thursday initial' );
		$this->weekday_initial[ $this->weekday[5] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'F', 'Friday initial' );
		$this->weekday_initial[ $this->weekday[6] ] = /* translators: One-letter abbreviation of the weekday. */ _x( 'S', 'Saturday initial' );

		// Abbreviations for each day.
		$this->weekday_abbrev[ $this->weekday[0] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Sun' );
		$this->weekday_abbrev[ $this->weekday[1] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Mon' );
		$this->weekday_abbrev[ $this->weekday[2] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Tue' );
		$this->weekday_abbrev[ $this->weekday[3] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Wed' );
		$this->weekday_abbrev[ $this->weekday[4] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Thu' );
		$this->weekday_abbrev[ $this->weekday[5] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Fri' );
		$this->weekday_abbrev[ $this->weekday[6] ] = /* translators: Three-letter abbreviation of the weekday. */ __( 'Sat' );

		// The months.
		$this->month['01'] = /* translators: Month name. */ __( 'January' );
		$this->month['02'] = /* translators: Month name. */ __( 'February' );
		$this->month['03'] = /* translators: Month name. */ __( 'March' );
		$this->month['04'] = /* translators: Month name. */ __( 'April' );
		$this->month['05'] = /* translators: Month name. */ __( 'May' );
		$this->month['06'] = /* translators: Month name. */ __( 'June' );
		$this->month['07'] = /* translators: Month name. */ __( 'July' );
		$this->month['08'] = /* translators: Month name. */ __( 'August' );
		$this->month['09'] = /* translators: Month name. */ __( 'September' );
		$this->month['10'] = /* translators: Month name. */ __( 'October' );
		$this->month['11'] = /* translators: Month name. */ __( 'November' );
		$this->month['12'] = /* translators: Month name. */ __( 'December' );

		// The months, genitive.
		$this->month_genitive['01'] = /* translators: Month name, genitive. */ _x( 'January', 'genitive' );
		$this->month_genitive['02'] = /* translators: Month name, genitive. */ _x( 'February', 'genitive' );
		$this->month_genitive['03'] = /* translators: Month name, genitive. */ _x( 'March', 'genitive' );
		$this->month_genitive['04'] = /* translators: Month name, genitive. */ _x( 'April', 'genitive' );
		$this->month_genitive['05'] = /* translators: Month name, genitive. */ _x( 'May', 'genitive' );
		$this->month_genitive['06'] = /* translators: Month name, genitive. */ _x( 'June', 'genitive' );
		$this->month_genitive['07'] = /* translators: Month name, genitive. */ _x( 'July', 'genitive' );
		$this->month_genitive['08'] = /* translators: Month name, genitive. */ _x( 'August', 'genitive' );
		$this->month_genitive['09'] = /* translators: Month name, genitive. */ _x( 'September', 'genitive' );
		$this->month_genitive['10'] = /* translators: Month name, genitive. */ _x( 'October', 'genitive' );
		$this->month_genitive['11'] = /* translators: Month name, genitive. */ _x( 'November', 'genitive' );
		$this->month_genitive['12'] = /* translators: Month name, genitive. */ _x( 'December', 'genitive' );

		// Abbreviations for each month.
		$this->month_abbrev[ $this->month['01'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Jan', 'January abbreviation' );
		$this->month_abbrev[ $this->month['02'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Feb', 'February abbreviation' );
		$this->month_abbrev[ $this->month['03'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Mar', 'March abbreviation' );
		$this->month_abbrev[ $this->month['04'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Apr', 'April abbreviation' );
		$this->month_abbrev[ $this->month['05'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'May', 'May abbreviation' );
		$this->month_abbrev[ $this->month['06'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Jun', 'June abbreviation' );
		$this->month_abbrev[ $this->month['07'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Jul', 'July abbreviation' );
		$this->month_abbrev[ $this->month['08'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Aug', 'August abbreviation' );
		$this->month_abbrev[ $this->month['09'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Sep', 'September abbreviation' );
		$this->month_abbrev[ $this->month['10'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Oct', 'October abbreviation' );
		$this->month_abbrev[ $this->month['11'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Nov', 'November abbreviation' );
		$this->month_abbrev[ $this->month['12'] ] = /* translators: Three-letter abbreviation of the month. */ _x( 'Dec', 'December abbreviation' );

		// The meridiems.
		$this->meridiem['am'] = __( 'am' );
		$this->meridiem['pm'] = __( 'pm' );
		$this->meridiem['AM'] = __( 'AM' );
		$this->meridiem['PM'] = __( 'PM' );

		/*
		 * Numbers formatting.
		 * See https://www.php.net/number_format
		 */

		/* translators: $thousands_sep argument for https://www.php.net/number_format, default is ',' */
		$thousands_sep = __( 'number_format_thousands_sep' );

		// Replace space with a non-breaking space to avoid wrapping.
		$thousands_sep = str_replace( ' ', '&nbsp;', $thousands_sep );

		$this->number_format['thousands_sep'] = ( 'number_format_thousands_sep' === $thousands_sep ) ? ',' : $thousands_sep;

		/* translators: $dec_point argument for https://www.php.net/number_format, default is '.' */
		$decimal_point = __( 'number_format_decimal_point' );

		$this->number_format['decimal_point'] = ( 'number_format_decimal_point' === $decimal_point ) ? '.' : $decimal_point;

		/* translators: Used between list items, there is a space after the comma. */
		$this->list_item_separator = __( ', ' );

		// Set text direction.
		if ( isset( $GLOBALS['text_direction'] ) ) {
			$this->text_direction = $GLOBALS['text_direction'];

			/* translators: 'rtl' or 'ltr'. This sets the text direction for WordPress. */
		} elseif ( 'rtl' === _x( 'ltr', 'text direction' ) ) {
			$this->text_direction = 'rtl';
		}

		// Set the word count type.
		$this->word_count_type = $this->get_word_count_type();
	}

	/**
	 * Retrieves the full translated weekday word.
	 *
	 * Week starts on translated Sunday and can be fetched
	 * by using 0 (zero). So the week starts with 0 (zero)
	 * and ends on Saturday with is fetched by using 6 (six).
	 *
	 * @since 2.1.0
	 *
	 * @param int $weekday_number 0 for Sunday through 6 Saturday.
	 * @return string Full translated weekday.
	 */
	public function get_weekday( $weekday_number ) {
		return $this->weekday[ $weekday_number ];
	}

	/**
	 * Retrieves the translated weekday initial.
	 *
	 * The weekday initial is retrieved by the translated
	 * full weekday word. When translating the weekday initial
	 * pay attention to make sure that the starting letter does
	 * not conflict.
	 *
	 * @since 2.1.0
	 *
	 * @param string $weekday_name Full translated weekday word.
	 * @return string Translated weekday initial.
	 */
	public function get_weekday_initial( $weekday_name ) {
		return $this->weekday_initial[ $weekday_name ];
	}

	/**
	 * Retrieves the translated weekday abbreviation.
	 *
	 * The weekday abbreviation is retrieved by the translated
	 * full weekday word.
	 *
	 * @since 2.1.0
	 *
	 * @param string $weekday_name Full translated weekday word.
	 * @return string Translated weekday abbreviation.
	 */
	public function get_weekday_abbrev( $weekday_name ) {
		return $this->weekday_abbrev[ $weekday_name ];
	}

	/**
	 * Retrieves the full translated month by month number.
	 *
	 * The $month_number parameter has to be a string
	 * because it must have the '0' in front of any number
	 * that is less than 10. Starts from '01' and ends at
	 * '12'.
	 *
	 * You can use an integer instead and it will add the
	 * '0' before the numbers less than 10 for you.
	 *
	 * @since 2.1.0
	 *
	 * @param string|int $month_number '01' through '12'.
	 * @return string Translated full month name.
	 */
	public function get_month( $month_number ) {
		return $this->month[ zeroise( $month_number, 2 ) ];
	}

	/**
	 * Retrieves translated version of month abbreviation string.
	 *
	 * The $month_name parameter is expected to be the translated or
	 * translatable version of the month.
	 *
	 * @since 2.1.0
	 *
	 * @param string $month_name Translated month to get abbreviated version.
	 * @return string Translated abbreviated month.
	 */
	public function get_month_abbrev( $month_name ) {
		return $this->month_abbrev[ $month_name ];
	}

	/**
	 * Retrieves translated version of meridiem string.
	 *
	 * The $meridiem parameter is expected to not be translated.
	 *
	 * @since 2.1.0
	 *
	 * @param string $meridiem Either 'am', 'pm', 'AM', or 'PM'. Not translated version.
	 * @return string Translated version
	 */
	public function get_meridiem( $meridiem ) {
		return $this->meridiem[ $meridiem ];
	}

	/**
	 * Global variables are deprecated.
	 *
	 * For backward compatibility only.
	 *
	 * @deprecated For backward compatibility only.
	 *
	 * @global array $weekday
	 * @global array $weekday_initial
	 * @global array $weekday_abbrev
	 * @global array $month
	 * @global array $month_abbrev
	 *
	 * @since 2.1.0
	 */
	public function register_globals() {
		$GLOBALS['weekday']         = $this->weekday;
		$GLOBALS['weekday_initial'] = $this->weekday_initial;
		$GLOBALS['weekday_abbrev']  = $this->weekday_abbrev;
		$GLOBALS['month']           = $this->month;
		$GLOBALS['month_abbrev']    = $this->month_abbrev;
	}

	/**
	 * Checks if current locale is RTL.
	 *
	 * @since 3.0.0
	 * @return bool Whether locale is RTL.
	 */
	public function is_rtl() {
		return 'rtl' === $this->text_direction;
	}

	/**
	 * Registers date/time format strings for general POT.
	 *
	 * Private, unused method to add some date/time formats translated
	 * on wp-admin/options-general.php to the general POT that would
	 * otherwise be added to the admin POT.
	 *
	 * @since 3.6.0
	 */
	public function _strings_for_pot() {
		/* translators: Localized date format, see https://www.php.net/manual/datetime.format.php */
		__( 'F j, Y' );
		/* translators: Localized time format, see https://www.php.net/manual/datetime.format.php */
		__( 'g:i a' );
		/* translators: Localized date and time format, see https://www.php.net/manual/datetime.format.php */
		__( 'F j, Y g:i a' );
	}

	/**
	 * Retrieves the localized list item separator.
	 *
	 * @since 6.0.0
	 *
	 * @return string Localized list item separator.
	 */
	public function get_list_item_separator() {
		return $this->list_item_separator;
	}

	/**
	 * Retrieves the localized word count type.
	 *
	 * @since 6.2.0
	 *
	 * @return string Localized word count type. Possible values are `characters_excluding_spaces`,
	 *                `characters_including_spaces`, or `words`. Defaults to `words`.
	 */
	public function get_word_count_type() {

		/*
		 * translators: If your word count is based on single characters (e.g. East Asian characters),
		 * enter 'characters_excluding_spaces' or 'characters_including_spaces'. Otherwise, enter 'words'.
		 * Do not translate into your own language.
		 */
		$word_count_type = is_null( $this->word_count_type ) ? _x( 'words', 'Word count type. Do not translate!' ) : $this->word_count_type;

		// Check for valid types.
		if ( 'characters_excluding_spaces' !== $word_count_type && 'characters_including_spaces' !== $word_count_type ) {
			// Defaults to 'words'.
			$word_count_type = 'words';
		}

		return $word_count_type;
	}
}