youtube_utils.php

<?php
/**
 * @param String $url
 * @return object
 */
function get_yt_info($url)
{
    $id = get_yt_id($url);
    if (is_null($id)) {
        return Response::json(['error' => 'Link không hợp lệ!']);
    }
    $cacheKey = 'yt_' . $id;
    $info = Cache::remember($cacheKey, 60, function () use ($id)
    {
        $endpoint = "https://gdata.youtube.com/feeds/api/videos/{$id}?v=2&alt=jsonc";
        return json_decode(file_get_contents($endpoint));
    });

    return $info;

}

function get_yt_id($url)
{
    if (strlen($url) == 11) {
        return $url;
    }
    $regex = '#https?://(?:www\.)?(?:youtube\.com/watch\?v=|youtu\.be/)([a-zA-Z0-9\-_]{11})#i';
    if (preg_match($regex, $url, $matches)) {
        return $matches[1];
    }

    return null;
}