Customize widget archives

wp-includes/widgets/class-wp-widget-archives.php

@@ -135,20 +135,9 @@ class WP_Widget_Archives extends WP_Widget {
 			}
 			?>
 
-			<ul>
+			<!-- <ul>
 				<?php
 				wp_get_archives(
-					/**
-					 * Filters the arguments for the Archives widget.
-					 *
-					 * @since 2.8.0
-					 * @since 4.9.0 Added the `$instance` parameter.
-					 *
-					 * @see wp_get_archives()
-					 *
-					 * @param array $args     An array of Archives option arguments.
-					 * @param array $instance Array of settings for the current widget.
-					 */
 					apply_filters(
 						'widget_archives_args',
 						array(
@@ -159,6 +148,51 @@ class WP_Widget_Archives extends WP_Widget {
 					)
 				);
 				?>
+			</ul> -->
+			<ul class="archive-list">
+				<?php
+				global $wpdb;
+
+				$years = $wpdb->get_results( "
+					SELECT DISTINCT YEAR(post_date) AS year, COUNT(ID) as post_count
+					FROM $wpdb->posts
+					WHERE post_type = 'post' AND post_status = 'publish'
+					GROUP BY year
+					ORDER BY post_date DESC
+				" );
+
+				foreach ( $years as $year ) {
+					?>
+					<li class="archive-year">
+						<a href="javascript:void(0);" class="archive-year-toggle">
+							<?php echo esc_html( $year->year ); ?> (<?php echo esc_html( $year->post_count ); ?>)
+						</a>
+						<ul class="archive-months" style="display:none;">
+							<?php
+							$months = $wpdb->get_results( $wpdb->prepare("
+								SELECT DISTINCT MONTH(post_date) AS month, COUNT(ID) as post_count
+								FROM $wpdb->posts
+								WHERE post_type = 'post' AND post_status = 'publish' AND YEAR(post_date) = %d
+								GROUP BY month
+								ORDER BY post_date DESC
+							", $year->year) );
+
+							foreach ( $months as $month ) {
+								$month_name = date_i18n( 'F', mktime( 0, 0, 0, $month->month, 1 ) );
+								?>
+								<li class="archive-month">
+									<a href="<?php echo get_month_link( $year->year, $month->month ); ?>">
+										<?php echo esc_html( $month_name . ' (' . $month->post_count . ')' ); ?>
+									</a>
+								</li>
+								<?php
+							}
+							?>
+						</ul>
+					</li>
+					<?php
+				}
+				?>
 			</ul>
 
 			<?php