PHP + Twitter - 为什么twitter会在推文文本中返回奇怪的字符？

Why do I get strange characters in my twitter tweets?

For example:

RT @FrankPasquale: “Far from being a superstate, the EC’s bureaucracy is tiny--25,000 people for an EU population of 500 million" https://t…

Especially https://t… - it is not a valid link/ url at all!

Follow this guide, below is my code how I get the twitter tweet from an user timeline:

$settings = array(
    'oauth_access_token' => "xxx",
    'oauth_access_token_secret' => "xxx",
    'consumer_key' => "xxx",
    'consumer_secret' => "xxx"
);

$url = "https://api.twitter.com/1.1/statuses/user_timeline.json";

$requestMethod = "GET";

$getfield = '?screen_name=xxxx&count=6';

$string = json_decode(
    $twitter->setGetfield($getfield)
            ->buildOauth($url, $requestMethod)
            ->performRequest(), $assoc = TRUE
    );

if (isset($string["errors"]) && $string["errors"][0]["message"] != "") {
    echo "<h3>Sorry, there was a problem.</h3>
          <p>Twitter returned the following error message:</p>
          <p><em>" . $string[errors][0]["message"] . "</em></p>";
    exit();
}

foreach($string as $items) {
    echo "Time and Date of Tweet: ".$items['created_at']."<br />";
    echo "Tweet: ". $items['text']."<br />";
    echo "Tweeted by: ". $items['user']['name']."<br />";
    echo "Screen name: ". $items['user']['screen_name']."<br />";
    echo "Followers: ". $items['user']['followers_count']."<br />";
    echo "Friends: ". $items['user']['friends_count']."<br />";
    echo "Listed: ". $items['user']['listed_count']."<br /><br />";
}

Any ideas why and how I can fix it?

EDIT:

If I try this:

htmlentities($items['text'], ENT_NOQUOTES, 'UTF-8')

I get this:

RT @FrankPasquale: “Far from being a superstate, the EC’s bureaucracy is tiny--25,000 people for an EU population of 500 million" https://t…

The link https://t… is totally broken!

I also have set my html to:

<meta charset="UTF-8">

But I still get this kind of links:

https://t…

Which is totally broken!

EDIT 2:

The problem is coming from twitter json:

{"created_at":"Fri Jun 24 14:28:16 +0000 2016","id":xxx,"id_str":"xxxx","text":"RT @muslimgirl: The people who invaded & colonized the world decided they wanted independence from its consequences
#BrexitVote
https:\/\/t.c\u2026"

If you look at #BrexitVote https:\/\/t.c\u2026 that is the bug.

How can fix that?