wp_get_archives

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Summery Summery

Display archive links based on type and format.

Syntax Syntax

wp_get_archives( string|array $args = '' )

Parameters Parameters

$args

(string|array) (Optional) Default archive links arguments. Optional.

  • 'type'
    (string) Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly', 'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha' display the same archive link list as well as post titles instead of displaying dates. The difference between the two is that 'alpha' will order by post title and 'postbypost' will order by post date. Default 'monthly'.
  • 'limit'
    (string|int) Number of links to limit the query to. Default empty (no limit).
  • 'format'
    (string) Format each link should take using the $before and $after args. Accepts 'link' (<link> tag), 'option' (<option> tag), 'html' (<li> tag), or a custom format, which generates a link anchor with $before preceding and $after succeeding. Default 'html'.
  • 'before'
    (string) Markup to prepend to the beginning of each link.
  • 'after'
    (string) Markup to append to the end of each link.
  • 'show_post_count'
    (bool) Whether to display the post count alongside the link. Default false.
  • 'echo'
    (bool|int) Whether to echo or return the links list. Default 1|true to echo.
  • 'order'
    (string) Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'. Default 'DESC'.
  • 'post_type'
    (string) Post type. Default 'post'.
  • 'year'
    (string) Year. Default current year.
  • 'monthnum'
    (string) Month number. Default current month number.
  • 'day'
    (string) Day. Default current day.
  • 'w'
    (string) Week. Default current week.

Default value: ''

Return Return

(void|string) Void if 'echo' argument is true, archive links if 'echo' is false.

Source Source

File: wp-includes/general-template.php

	}

	/**
	 * Filters the description for a post type archive.
	 *
	 * @since 4.9.0
	 *
	 * @param string       $description   The post type description.
	 * @param WP_Post_Type $post_type_obj The post type object.
	 */
	return apply_filters( 'get_the_post_type_description', $description, $post_type_obj );
}

/**
 * Retrieve archive link content based on predefined or custom code.
 *
 * The format can be one of four styles. The 'link' for head element, 'option'
 * for use in the select element, 'html' for use in list (either ol or ul HTML
 * elements). Custom content is also supported using the before and after
 * parameters.
 *
 * The 'link' format uses the `<link>` HTML element with the **archives**
 * relationship. The before and after parameters are not used. The text
 * parameter is used to describe the link.
 *
 * The 'option' format uses the option HTML element for use in select element.
 * The value is the url parameter and the before and after parameters are used
 * between the text description.
 *
 * The 'html' format, which is the default, uses the li HTML element for use in
 * the list HTML elements. The before parameter is before the link and the after
 * parameter is after the closing link.
 *
 * The custom format uses the before parameter before the link ('a' HTML
 * element) and the after parameter after the closing link tag. If the above
 * three values for the format are not used, then custom format is assumed.
 *
 * @since 1.0.0
 * @since 5.2.0 Added the `$selected` parameter.
 *
 * @param string $url      URL to archive.
 * @param string $text     Archive text description.
 * @param string $format   Optional. Can be 'link', 'option', 'html', or custom. Default 'html'.
 * @param string $before   Optional. Content to prepend to the description. Default empty.
 * @param string $after    Optional. Content to append to the description. Default empty.
 * @param bool   $selected Optional. Set to true if the current page is the selected archive page.
 * @return string HTML link content for archive.
 */
function get_archives_link( $url, $text, $format = 'html', $before = '', $after = '', $selected = false ) {
	$text         = wptexturize( $text );
	$url          = esc_url( $url );
	$aria_current = $selected ? ' aria-current="page"' : '';

	if ( 'link' === $format ) {
		$link_html = "\t<link rel='archives' title='" . esc_attr( $text ) . "' href='$url' />\n";
	} elseif ( 'option' === $format ) {
		$selected_attr = $selected ? " selected='selected'" : '';
		$link_html     = "\t<option value='$url'$selected_attr>$before $text $after</option>\n";
	} elseif ( 'html' === $format ) {
		$link_html = "\t<li>$before<a href='$url'$aria_current>$text</a>$after</li>\n";
	} else { // Custom.
		$link_html = "\t$before<a href='$url'$aria_current>$text</a>$after\n";
	}

	/**
	 * Filters the archive link content.
	 *
	 * @since 2.6.0
	 * @since 4.5.0 Added the `$url`, `$text`, `$format`, `$before`, and `$after` parameters.
	 * @since 5.2.0 Added the `$selected` parameter.
	 *
	 * @param string $link_html The archive HTML link content.
	 * @param string $url       URL to archive.
	 * @param string $text      Archive text description.
	 * @param string $format    Link format. Can be 'link', 'option', 'html', or custom.
	 * @param string $before    Content to prepend to the description.
	 * @param string $after     Content to append to the description.
	 * @param bool   $selected  True if the current page is the selected archive.
	 */
	return apply_filters( 'get_archives_link', $link_html, $url, $text, $format, $before, $after, $selected );
}

/**
 * Display archive links based on type and format.
 *
 * @since 1.2.0
 * @since 4.4.0 The `$post_type` argument was added.
 * @since 5.2.0 The `$year`, `$monthnum`, `$day`, and `$w` arguments were added.
 *
 * @see get_archives_link()
 *
 * @global wpdb      $wpdb      WordPress database abstraction object.
 * @global WP_Locale $wp_locale WordPress date and time locale object.
 *
 * @param string|array $args {
 *     Default archive links arguments. Optional.
 *
 *     @type string     $type            Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly',
 *                                       'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha'
 *                                       display the same archive link list as well as post titles instead
 *                                       of displaying dates. The difference between the two is that 'alpha'
 *                                       will order by post title and 'postbypost' will order by post date.
 *                                       Default 'monthly'.
 *     @type string|int $limit           Number of links to limit the query to. Default empty (no limit).
 *     @type string     $format          Format each link should take using the $before and $after args.
 *                                       Accepts 'link' (`<link>` tag), 'option' (`<option>` tag), 'html'
 *                                       (`<li>` tag), or a custom format, which generates a link anchor
 *                                       with $before preceding and $after succeeding. Default 'html'.
 *     @type string     $before          Markup to prepend to the beginning of each link. Default empty.
 *     @type string     $after           Markup to append to the end of each link. Default empty.
 *     @type bool       $show_post_count Whether to display the post count alongside the link. Default false.
 *     @type bool|int   $echo            Whether to echo or return the links list. Default 1|true to echo.
 *     @type string     $order           Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'.
 *                                       Default 'DESC'.
 *     @type string     $post_type       Post type. Default 'post'.
 *     @type string     $year            Year. Default current year.
 *     @type string     $monthnum        Month number. Default current month number.
 *     @type string     $day             Day. Default current day.
 *     @type string     $w               Week. Default current week.
 * }
 * @return void|string Void if 'echo' argument is true, archive links if 'echo' is false.
 */
function wp_get_archives( $args = '' ) {
	global $wpdb, $wp_locale;

	$defaults = array(
		'type'            => 'monthly',
		'limit'           => '',
		'format'          => 'html',
		'before'          => '',
		'after'           => '',
		'show_post_count' => false,
		'echo'            => 1,
		'order'           => 'DESC',
		'post_type'       => 'post',
		'year'            => get_query_var( 'year' ),
		'monthnum'        => get_query_var( 'monthnum' ),
		'day'             => get_query_var( 'day' ),
		'w'               => get_query_var( 'w' ),
	);

	$parsed_args = wp_parse_args( $args, $defaults );

	$post_type_object = get_post_type_object( $parsed_args['post_type'] );
	if ( ! is_post_type_viewable( $post_type_object ) ) {
		return;
	}

	$parsed_args['post_type'] = $post_type_object->name;

	if ( '' === $parsed_args['type'] ) {
		$parsed_args['type'] = 'monthly';
	}

	if ( ! empty( $parsed_args['limit'] ) ) {
		$parsed_args['limit'] = absint( $parsed_args['limit'] );
		$parsed_args['limit'] = ' LIMIT ' . $parsed_args['limit'];
	}

	$order = strtoupper( $parsed_args['order'] );
	if ( 'ASC' !== $order ) {
		$order = 'DESC';
	}

	// This is what will separate dates on weekly archive links.
	$archive_week_separator = '&#8211;';

	$sql_where = $wpdb->prepare( "WHERE post_type = %s AND post_status = 'publish'", $parsed_args['post_type'] );

	/**
	 * Filters the SQL WHERE clause for retrieving archives.
	 *
	 * @since 2.2.0
	 *
	 * @param string $sql_where   Portion of SQL query containing the WHERE clause.
	 * @param array  $parsed_args An array of default arguments.
	 */
	$where = apply_filters( 'getarchives_where', $sql_where, $parsed_args );

	/**
	 * Filters the SQL JOIN clause for retrieving archives.
	 *
	 * @since 2.2.0
	 *
	 * @param string $sql_join    Portion of SQL query containing JOIN clause.
	 * @param array  $parsed_args An array of default arguments.
	 */
	$join = apply_filters( 'getarchives_join', '', $parsed_args );

	$output = '';

	$last_changed = wp_cache_get_last_changed( 'posts' );

	$limit = $parsed_args['limit'];

	if ( 'monthly' === $parsed_args['type'] ) {
		$query   = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order $limit";
		$key     = md5( $query );
		$key     = "wp_get_archives:$key:$last_changed";
		$results = wp_cache_get( $key, 'posts' );
		if ( ! $results ) {
			$results = $wpdb->get_results( $query );
			wp_cache_set( $key, $results, 'posts' );
		}
		if ( $results ) {
			$after = $parsed_args['after'];
			foreach ( (array) $results as $result ) {
				$url = get_month_link( $result->year, $result->month );
				if ( 'post' !== $parsed_args['post_type'] ) {
					$url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
				}
				/* translators: 1: Month name, 2: 4-digit year. */
				$text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
				if ( $parsed_args['show_post_count'] ) {
					$parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
				}
				$selected = is_archive() && (string) $parsed_args['year'] === $result->year && (string) $parsed_args['monthnum'] === $result->month;
				$output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );

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Changelog Changelog

Changelog
Version Description
5.2.0 The $year, $monthnum, $day, and $w arguments were added.
4.4.0 The $post_type argument was added.
1.2.0 Introduced.

See also See also

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