其实现在的搜索引擎已经完全能够处理中文tag，只不过如果我们改成英文字母或者数字之后在某些地方可能有一定的优势，比如我们用到缓存的时候可以先伪静态搞成一个假的HTML...
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) {
$new_rules = array(
'tag/(\d+)/feed/(feed|rdf|rss|rss2|atom).html' => 'index.php?tag_id=$matches[1]&feed=$matches[2]',
'tag/(\d+)/(feed|rdf|rss|rss2|atom).html' => 'index.php?tag_id=$matches[1]&feed=$matches[2]',
'tag/(\d+)/embed.html' => 'index.php?tag_id=$matches[1]&embed=true',
'tag/(\d+)/page/(\d+).html' => 'index.php?tag_id=$matches[1]&paged=$matches[2]',
'tag/(\d+).html' => '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.'.html');
}
return $link;
}
function tag_query_vars($public_query_vars) {
$public_query_vars[] = 'tag_id';
return $public_query_vars;
}