PHP清除指定html标签实例代码

   function strip_selected_tags($text, $tags = array())
   {
       $args = func_get_args();
       $text = array_shift($args);
       $tags = func_num_args() > 2 ? array_diff($args,array($text))  : (array)$tags;
       foreach ($tags as $tag){
           if(preg_match_all('/<'.$tag.'[^>]*>(.*)/iU', $text, $found)){
               $text = str_replace($found[0],$found[1],$text);
         }
       }       return $text;
   }
?>