新操作是dashboard_glance_items. 它是一个过滤器，提供可以向其中添加项目的数组。

我的插件示例T5 Taxonomy Location

add_filter(
    \'dashboard_glance_items\',
    array ( $this, \'add_to_glance\' )
);


/**
 * Add locations to the new "At a glance" dashboard widget.
 *
 * @param  array $items
 * @return array
 */
public function add_to_glance( Array $items )
{
    $num  = wp_count_terms( $this->taxonomy );
    // Singular or Plural.
    $text = _n(
        \'%s Location\',
        \'%s Locations\',
        $num,
        \'plugin_t5_tax_location\'
    );
    // thousands separator etc.
    $text = sprintf( $text, number_format_i18n( $num ) );

    if ( current_user_can( "manage_$this->taxonomy" ) )
    {
        $url  = admin_url( "edit-tags.php?taxonomy=$this->taxonomy" );
        $text = "<a href=\'$url\'>$text</a>";
    }

    $items[] = $text;

    return $items;
}

新的东西本质上是不同的小部件，挂钩已从核心中移除。最接近的替代品是新的dashboard_glance_items 滤器

参见trac票据：

• #26495 (Dashboard "At a Glance" hooks changed)
• #26571 (Increase flexibility of "At a Glance" Dashboard Widget to match "Right Now" Widget)

请检查此功能。我相信这是暂时的解决办法，但对我来说很有效。可在此处找到更多信息：Add Custom Post Types and Taxonomies to At a Glance dashboard widget

add_action( \'dashboard_glance_items\', \'cor_right_now_content_table_end\' );
function cor_right_now_content_table_end() {
$args = array(
    \'public\' => true,
    \'_builtin\' => false
);
$output = \'object\';
$operator = \'and\';

$post_types = get_post_types( $args, $output, $operator );
foreach ( $post_types as $post_type ) {
    $num_posts = wp_count_posts( $post_type->name );
    $num = number_format_i18n( $num_posts->publish );
    $text = _n( $post_type->labels->singular_name, $post_type->labels->name, intval( $num_posts->publish ) );
    if ( current_user_can( \'edit_posts\' ) ) {
        $output = \'<a href="edit.php?post_type=\' . $post_type->name . \'">\' . $num . \'&nbsp;\' . $text . \'</a>\';
    }
    echo \'<li class="post-count \' . $post_type->name . \'-count">\' . $output . \'</li>\';
}
$taxonomies = get_taxonomies( $args, $output, $operator );
foreach ( $taxonomies as $taxonomy ) {
    $num_terms = wp_count_terms( $taxonomy->name );
    $num = number_format_i18n( $num_terms );
    $text = _n( $taxonomy->labels->singular_name, $taxonomy->labels->name, intval( $num_terms ) );
    if ( current_user_can( \'manage_categories\' ) ) {
        $output = \'<a href="edit-tags.php?taxonomy=\' . $taxonomy->name . \'">\' . $num . \'&nbsp;\' . $text . \'</a>\';
    }
    echo \'<li class="taxonomy-count \' . $taxonomy->name . \'-count">\' . $output . \'</li>\';
}
}

// Add Some CSS to "At a Glance" Widget
function custom_colors() {
echo \'<style type="text/css">
    .slides-count a:before {content:"\\f233"!important}
    .gallery-count a:before {content:"\\f163"!important}
    </style>\';
}
add_action(\'admin_head\', \'custom_colors\');