2020『鼠』实不易，2021『牛』转乾坤？希望能安心脱下口罩

//获取年度评论总数
if ( ! function_exists( 'comment_counts_by_year' ) ) {
	function comment_counts_by_year( $year = 2020 ) {
		$args = array(
			'date_query'	=>	array( 'year' => $year ),
			'user_id'		=> 0, //只统计访客
			'status'		=> 'approve', //只统计已通过审核
			'count'			=> true
		);
		$comment_counts = get_comments( $args );
		return $comment_counts;
	}
}

//获取年度文章总数
if ( ! function_exists( 'posts_counts_by_year' ) ) {
	function posts_counts_by_year( $year = 2020 ) {
		$args = array(
			'post_type'		=> 'post',
			'post_status'	=>'publish',
			'date_query'	=>	array( 'year' => $year ),
			'no_found_rows'	=> true,
			'fields'		=> 'ids',
			'ignore_sticky_posts' => 1,
			'posts_per_page'=> -1
		);
		$query_posts_counts_by_year = new WP_Query( $args );
		wp_reset_postdata();
		return $query_posts_counts_by_year->post_count;
	}
}
//获取年度浏览最多文章
if ( ! function_exists( 'posts_most_views_by_year' ) ) {
	function posts_most_views_by_year( $year = 2020 ) {
		$args = array(
			'post_type'		=> 'post',
			'post_status'	=>'publish',
			'date_query'		=>	array( 'year' => $year ),
			'posts_per_page'    =>	10,//10篇
			'orderby'           =>	'meta_value_num',
			'order'             =>	'desc',
			'meta_key'          =>	'views',
			'ignore_sticky_posts' => 1 //忽略 sticky posts
		);
		$posts_most_views_by_year = new WP_Query( $args );
		if ( $posts_most_views_by_year->have_posts() ) {
			$output = '<ul>';
			while ( $posts_most_views_by_year->have_posts() ) {
				$posts_most_views_by_year->the_post();
				// Post Views.
				$post_views = get_post_meta( get_the_ID(), 'views', true );
				// Post Title.
				$post_title = get_the_title();
				$output .= '<li><a href="'.get_permalink().'"  title="'.$post_title.'">'.$post_title.'</a>（'.$post_views.'）</li>';
			}
			$output .= '</ul>';
			wp_reset_postdata();
		}  else {
			$output = '<li>' . __( 'N/A', 'OOXX' ) . '</li>' . "\n";
		}
		wp_reset_postdata();
		return $output;
	}
}
//获取年度评论最多文章
if ( ! function_exists( 'posts_most_comments_by_year' ) ) {
	function posts_most_comments_by_year( $year = 2020 ) {
		$args = array(
			'post_type'		=> 'post',
			'post_status'	=>'publish',
			'date_query'		=>	array( 'year' => $year ),
			'posts_per_page'    =>	10,//10篇
			'orderby'           =>	'comment_count',
			'order'             =>	'desc',
			'ignore_sticky_posts' => 1 //忽略 sticky posts
		);
		$posts_most_comments_by_year = new WP_Query( $args );
		if ( $posts_most_comments_by_year->have_posts() ) {
			$output = '<ul>';
			while ( $posts_most_comments_by_year->have_posts() ) {
				$posts_most_comments_by_year->the_post();
				// Post comments.
				$number = get_comments_number( get_the_ID() );
				// Post Title.
				$post_title = get_the_title();
				$output .= '<li><a href="'.get_permalink().'"  title="'.$post_title.'">'.$post_title.'</a>（'.$number.'）</li>';
			}
			$output .= '</ul>';
			wp_reset_postdata();
		}  else {
			$output = '<li>' . __( 'N/A', 'OOXX' ) . '</li>' . "\n";
		}
		wp_reset_postdata();
		return $output;
	}
}
//年度统计
if ( ! function_exists( 'get_mosted' ) ) {
	function get_mosted( $year = 2020 ) {
		if ( !is_user_logged_in() ) { return; }
		echo $year .'年发布'.posts_counts_by_year( $year ).'篇文章，收到'.comment_counts_by_year( $year ).'条留言';
		echo '<h3>'.$year .'年浏览最多文章</h3>'.posts_most_views_by_year( $year );
		echo '<h3>'.$year .'年评论最多文章</h3>'.posts_most_comments_by_year( $year );

	}
}

使用 get_mosted 输出即可：

<?php get_mosted( $year = 2020 );?>