WordPress的過濾器分類

Question

如何獲得所有的子類別ID？ Catrgories和subcatrgories就像

2013 
    April 10 
    April 9 
    April 8 
    March 10 
    March 9 
2012 
    June 10 
    May 6 
     May 5 
Cast 
Group 
Party 

我如何獲得所有的月子類的id？ 我需要此分頁來顯示頁面鏈接，如site.com/catrgory/catrgory-slug/issue/{year}/{month}/{day}。我需要顯示與子類別頁面的鏈接分頁。 其中列出了特定子類別的所有帖子。

我現在用的是重寫URL

add_action('generate_rewrite_rules', 'past_issue_rewrite_rules'); 
function past_issue_rewrite_rules($wp_rewrite) { 

    // handles paged/pagination requests 
    $new_rules = array('category/catrgory-slug/issue/(.+)/(.+)/(.+)/' => '?year='.$wp_rewrite->preg_index(1).'&month='.$wp_rewrite->preg_index(2).'&day='.$wp_rewrite->preg_index(3)); 

    // Add the new rewrite rule into the top of the global rules array 
    $wp_rewrite->rules = $new_rules + $wp_rewrite->rules; 
} 

Answer 1

我厭倦了這一點，它是工作

$root_categories = get_categories(array('parent' => 0,'hide_empty ' => 1, 'order' => 'desc')); 
$categories = array(); 
if(empty($root_categories)){ return $categories;} 
foreach($root_categories as $category){ 
    if(preg_match('/\d{4}$/',$category->name, $matches)) { 
     $subcategories = get_categories('child_of='.$category->cat_ID.'&hide_empty=1&order=desc'); 
     if(!empty($subcategories)) { 
      foreach($subcategories as $subcatgory) { 
      } 
     } 
    } 
}