计划书之家主题ripro子主题导航菜单显示每日文章更新数量

// 注册菜单
register_nav_menus( array(
	'primary' => __( '我的菜单' ),
) );
// 强化菜单 调用代码 (php) wp_nav_menu( array( 'theme_location' => 'primary', 'walker' => new description_walker ) ); (/php)
// 强化菜单 结构
class description_walker extends Walker_Nav_Menu
{
	function start_el(&$output, $item, $depth, $args)
	{
		global $wp_query;
		$indent = ( $depth ) ? str_repeat( "t", $depth ) : '';
 
		$class_names = $value = '';
 
		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
 
		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
		$class_names = ' class="'. esc_attr( $class_names ) . '"';
 
		$output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>';
 
		$attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
		$attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
		$attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
		$attributes .= ! empty( $item->url )        ? ' href="'%20%20%20. esc_attr( $item->url        ) .'"' : '';
 
		$prepend = '<span>';
		$append = '</span>';
		$description  = ! empty( $item->description ) ? '<span>'.esc_attr( $item->description ).'</span>' : '';
 
		if($depth != 0)
		{
			$description = $append = $prepend = "";
		}
 
		$item_output = $args->before;
		$item_output .= '<a'. $attributes .'>';
		$item_output .= $args->link_before .$prepend.apply_filters( 'the_title', $item->title, $item->ID ).$append;
		// seabye++
		if ( $item->description<=0 ) { $item_output .= $description; }
			else { $item_output .= '<span class="day">+'.get_this_week_post_count_by_category($item->description).'</span>'; }
		$item_output .= $args->link_after;
		// seabye++ end
		// $item_output .= $description.$args->link_after;
		$item_output .= '</a>';
		$item_output .= $args->after;
 
		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
	}
}
// 强化菜单 代表时间
// 一日 today
// 一周 1 week ago
// 一年 1 year ago
// 千年 1000 year ago
function get_this_week_post_count_by_category($id) {
	$date_query = array(
		array(
			'after' => 'today'
			)
		);
	$tax_query = array(
		array(
			'taxonomy' => 'category',
				'field' => 'id',
				'terms' => $id
			)
		);
	$args = array(
		'post_type' => 'post',
		'post_status' => 'publish',
		'tax_query' => $tax_query,
		'date_query' => $date_query,
		'no_found_rows' => true,
		'suppress_filters' => true,
		'fields' => 'ids',
		'posts_per_page' => -1
		);
	$query = new WP_Query( $args );
	return $query->post_count;
}

<?php wp_nav_menu( array( 'theme_location' => 'primary', 'walker' => new description_walker ) ); ?>