读youtube名称PHP带来符号？

Question

I'm trying to read certain videos names off of youtube, I have it working correctly, although it seems that certain symbols will show as other weird symbols. (Unicode I think??)

function get_youtube_title($video_id){
    $url = "http://www.youtube.com/watch?v=".$video_id;

    $page = file_get_contents($url);
    $doc = new DOMDocument();
    $doc->loadHTML($page);

    $title_div = $doc->getElementById('eow-title');
    $title = $title_div->nodeValue;

    return $title;
}

echo get_youtube_title('e3Nl_TCQXuw');

I should be getting "Beauty and the Beast - US Official Final Trailer"

Instead I'm getting "Beauty and the Beast â US Official Final Trailer"

Thank you