如何阻止我的推文代码输出撇号为＆＃039;

I am using the below functions to create a twitter feed. You can see the results in the footer of my portfolio at nicolaelvin.com. How do I get rid of that ' and make it an apostrophe?

function twitify($str){
                $str = preg_replace("#(^|[
 ])([\w]+?://[\w]+[^ \"
\t< ]*)#", "\\1<a href=\"\\2\" target=\"_blank\">\\2</a>", $str);
                $str = preg_replace("#(^|[
 ])((www|ftp)\.[^ \"\t
< ]*)#", "\\1<a href=\"http://\\2\" target=\"_blank\">\\2</a>", $str);
                $str = preg_replace("/@(\w+)/", "@<a href=\"http://www.twitter.com/\\1\" target=\"_blank\">\\1</a>", $str);
                $str = preg_replace("/#(\w+)/", "#<a href=\"http://search.twitter.com/search?q=\\1\" target=\"_blank\">\\1</a>", $str);
                return $str;
        }

    function twitter(){

        $twitterRssFeedUrl =  "http://twitter.com/statuses/user_timeline/nicolaElvin.rss";
        $twitterUsername = "nicolaElvin";
        $amountToShow = 5;
        $twitterPosts = false;
        $xml = @simplexml_load_file($twitterRssFeedUrl);
        if(is_object($xml)){
            foreach($xml->channel->item as $twit){
              if(is_array($twitterPosts) && count($twitterPosts)==$amountToShow){
                break;
              }
              $d['title'] = stripslashes(htmlentities($twit->title,ENT_QUOTES,'UTF-8'));
              $description = stripslashes(htmlentities($twit->description,ENT_QUOTES,'UTF-8'));
              if(strtolower(substr($description,0,strlen($twitterUsername))) == strtolower($twitterUsername)){
                $description = substr($description,strlen($twitterUsername)+1);
              }
              $d['description'] = $description;
              $d['pubdate'] = strtotime($twit->pubDate);
              $d['guid'] = stripslashes(htmlentities($twit->guid,ENT_QUOTES,'UTF-8'));
              $d['link'] = stripslashes(htmlentities($twit->link,ENT_QUOTES,'UTF-8'));
              $twitterPosts[]=$d;
            }
        }else{
            die('cannot connect to twitter feed');
        }

        if(is_array($twitterPosts)){


            echo '<ul>';
            foreach($twitterPosts as $post){
                $description=twitify($post['description']);

              echo '<li><time>'.date('F j, Y, g:i a',$post['pubdate']).'</time></li><li>'.$description.'</li>';
            }
            echo '</ul>';
        }else{
            echo '<p>No Twitter posts have been made</p>';
        }

    }

I don't know what is exactly the problem. But I think the encoding is caused by the "htmlentities()" function. Look here for correct syntax.

You're using an extremely outdated API endpoint, you're using RSS and not properly using functions such as htmlentities.

Recommend using the correct API endpoint (https://api.twitter.com/1/statuses/user_timeline.json), using JSON instead of RSS, and not bothering with htmlentities until you're actually showing the data.

Oh, btw, you're using an URL regex on a tweet, but since all URLs are now t.co URLs, there's no need to bother with looking for URLs that don't start with http://