编辑“WordPress常用函数is taxonomy”

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==说明==
将分类法名称作为变量传递给这个条件标签，条件[[标签]]可查看分类法名称是否确实存在。这个布尔值函数使用 $wp_taxonomies全局变量判断分类法名称的存在，同时若分类法名称存在时返回TRUE，不存在时返回FALSE。

==用法==
 <?php is_taxonomy($taxonomy); ?> 

==示例==
 $taxonomy_exist = is_taxonomy('category');
 //returns true
 $taxonomy_exist = is_taxonomy('post_tag');
 //returns true
 $taxonomy_exist = is_taxonomy('link_category');
 //returns true
 $taxonomy_exist = is_taxonomy('my_taxonomy');
 //returns false if global $wp_taxonomies['my_taxonomy'] is not set

'''参数'''

'''$tag'''

（字符串）（必需）分类法名称

默认值：None

'''相关资源'''

[http://codex.wordpress.org/Function_Reference/is_home is_home()], [http://codex.wordpress.org/Function_Reference/is_front_page is_front_page()], [http://codex.wordpress.org/Function_Reference/is_search is_search()], [http://codex.wordpress.org/Function_Reference/is_404 is_404()], [http://codex.wordpress.org/Function_Reference/is_singular is_singular()], [http://codex.wordpress.org/Function_Reference/is_page is_page()], [http://codex.wordpress.org/Function_Reference/is_attachment is_attachment()], [http://codex.wordpress.org/Function_Reference/is_local_attachment is_local_attachment()], [http://codex.wordpress.org/Function_Reference/is_single is_single()], [http://codex.wordpress.org/Function_Reference/is_sticky is_sticky()], [http://codex.wordpress.org/Function_Reference/is_archive is_archive()], [http://codex.wordpress.org/Function_Reference/is_category is_category()], [http://codex.wordpress.org/Function_Reference/is_tag is_tag()], [http://codex.wordpress.org/Function_Reference/is_author is_author()], [http://codex.wordpress.org/Function_Reference/is_date is_date()], [http://codex.wordpress.org/Function_Reference/is_year is_year()], [http://codex.wordpress.org/Function_Reference/is_month is_month()], [http://codex.wordpress.org/Function_Reference/is_day is_day()], [http://codex.wordpress.org/Function_Reference/is_time is_time()], [http://codex.wordpress.org/Function_Reference/is_admin is_admin()], [http://codex.wordpress.org/Function_Reference/is_preview is_preview()], [http://codex.wordpress.org/Function_Reference/is_paged is_paged()], [http://codex.wordpress.org/Function_Reference/is_page_template is_page_template()], [http://codex.wordpress.org/Function_Reference/is_plugin_page is_plugin_page()], [http://codex.wordpress.org/Function_Reference/is_new_day is_new_day()], [http://codex.wordpress.org/Function_Reference/is_feed is_feed()], [http://codex.wordpress.org/Function_Reference/is_trackback is_trackback()], [http://codex.wordpress.org/Function_Reference/is_comments_popup is_comments_popup()], [http://codex.wordpress.org/Function_Reference/comments_open comments_open()], [http://codex.wordpress.org/Function_Reference/pings_open pings_open()], <STRONG>is_taxonomy()</STRONG>, [http://codex.wordpress.org/Function_Reference/is_taxonomy_hierarchical is_taxonomy_hierarchical()]


==相关条目==
*[[Drupal]] 
*[[OBLOG]] 
*[[X-Space]] 
*[[SaBlog-X]] 
*[[Bo-Blog]]

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