今天来分享一篇教程，修改WordPress的文章TAG标签用ID显示，wordpress默认的tag标签输出的url是以原字输出，也就是你的tag是中文，输出的url也是带有中文的！但是中文的显示有时候会被转码，这次的修改会让你的tag更简化！
下面放出代码：把代码放到主题根目录下的functions.php文件就行了
！！！改了之后记得进入后台，设置-固定链接-重新点保存才会生效！！要不然变成404了。
add_action('generate_rewrite_rules','tag_rewrite_rules');
add_filter('term_link','tag_term_link',10,3);
add_action('query_vars', 'tag_query_vars');
function tag_rewrite_rules($wp_rewrite){
$new_rules = array(
'tag/(\d+)/feed/(feed|rdf|rss|rss2|atom)/?$' => 'index.php?tag_id=$matches[1]&feed=$matches[2]',
'tag/(\d+)/(feed|rdf|rss|rss2|atom)/?$' => 'index.php?tag_id=$matches[1]&feed=$matches[2]',
'tag/(\d+)/embed/?$' => 'index.php?tag_id=$matches[1]&embed=true',
'tag/(\d+)/page/(\d+)/?$' => 'index.php?tag_id=$matches[1]&paged=$matches[2]',
'tag/(\d+)/?$' => 'index.php?tag_id=$matches[1]',
);
$wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}
function tag_term_link($link,$term,$taxonomy){
if($taxonomy=='post_tag'){
return home_url('/tag/'.$term->term_id);
}
return $link;
}
function tag_query_vars($public_query_vars){
$public_query_vars[] = 'tag_id';
return $public_query_vars;
}