wordpress中文标签404及标签分页打不开解决办法如下：办法来至插件IIS Chinese Tag Permalink

*/  
add_action('init', 'bossma_get_urf8_pathandurl');  
add_filter('get_pagenum_link','bossma_set_utf8_pagenumlink');  
add_action('parse_query','bossma_chinese_tag_encode');  
  
//iis encoding the url with GBK,but wordpress with utf-8  
function bossma_get_urf8_pathandurl() {  
    $_SERVER['PATH_INFO']=iconv("GBK","UTF-8",$_SERVER['PATH_INFO']);  
    $_SERVER['REQUEST_URI']=iconv("GBK","UTF-8",$_SERVER['REQUEST_URI']);  
}  
  
//urlencode for chinese tag  
//sometimes preg_match can not match the chinese correctly   
function bossma_chinese_tag_encode($query){  
    if(isset($is_tag)&&$is_tag){  
        if($query->query_vars['tag']!=''){  
            $query->query_vars['tag']=urlencode($query->query_vars['tag']);  
        }  
    }  
}  
  
//for generate tag pagenum link  
//use utf8 encode  
function bossma_set_utf8_pagenumlink($result){  
 $tag_index=stripos($result,"/tag/");  
 $link_len=strlen($result);  
 if($tag_index!==false){  
  $link_base=substr($result,0,$tag_index);  
  $page_index=strripos($result,"/page/");  
  if($page_index!==false){  
   $tag_str=substr($result,$tag_index+5,$page_index-$tag_index-5);  
   $result=$link_base."/tag/".rawurlencode($tag_str).substr($result,$page_index);  
  }else{  
   $tag_str=substr($result,$tag_index+5);  
   $result=$link_base."/tag/".rawurlencode($tag_str)."/";  
  }  
  
 }  
 return $result;  
}