WP-Snips: Menambahkan Jumlah Post di Samping Menu

Cara Pakai:
1. Paste salah satu kode berikut di function.php, yang pertama simpel.
2. Bikin Custom menu. Tanpa custom menu tidak muncul menu post count-nya.

Sumber: https://wordpress.stackexchange.com/questions/165333/how-to-add-category-post-count-in-main-navigation-menu

add_filter('the_title', 'wpse165333_the_title', 10, 2);
function wpse165333_the_title($title, $post_ID)
{
    if( 'nav_menu_item' == get_post_type($post_ID) )
    {
        if( 'taxonomy' == get_post_meta($post_ID, '_menu_item_type', true) && 'category' == get_post_meta($post_ID, '_menu_item_object', true) )
        {
            $category = get_category( get_post_meta($post_ID, '_menu_item_object_id', true) );
            $title .= sprintf(' (%d)', $category->count);
        }
    }
    return $title;
}





Sumber: https://wordpress.stackexchange.com/questions/229767/show-posts-count-for-categories-and-tags-in-wp-nav-menu

function ggstyle_menu_item_count( $output, $item, $depth, $args ) {
    // Check if the item is a Category or Custom Taxonomy
    if( $item->type == 'taxonomy' ) {
        $object = get_term($item->object_id, $item->object);

        // Check count, if more than 0 display count
        if($object->count > 0)
            $output .= "<span class='menu-item-count'> (".$object->count.")</span>";
    }

    return $output;
}
add_action( 'walker_nav_menu_start_el', 'ggstyle_menu_item_count', 10, 4 );