修改WordPress的文章TAG标签用ID显示

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;

}