ChannelCommand.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use App\Channel;

class ChannelCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'channel:list {url?}';
    public $apiKey;
    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->apiKey =  env('YOUTUBE_API_KEY');
        parent::__construct();
    }
    public function getYouTubeChannelIdByUserUrl($url)
    {
        $userId = null;
        $str = '/(?:http(?:s)?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"\'<> #]+)/';
        if (preg_match($str, $url, $match)) {
            $userId = $match[1];
        }
        return $userId;
    }
    public function getYouTubeChannelIdByUrl($url)
    {
        $video_id = null;
        $str = '/((http|https):\/\/)?(www\.|)youtube\.com\/channel\/([a-zA-Z0-9_\-]{1,})/';
        if (strpos($url,'user')){
            return 'user';
        }else{
            if (preg_match($str, $url, $match)) {
                $video_id = $match[4];
            }
        }
        return $video_id;
    }
    public function channelInfo($channelId,$parts,$userId = null)
    {
        $ytApiKey = $this->apiKey;
        $queryString = "https://www.googleapis.com/youtube/v3/channels/";
        $queryString .= "?part=$parts";
        $queryString .= "&key={$ytApiKey}";
        if ($userId!==null){
            $queryString .= "&forUsername=$userId";
        }else{
            $queryString .= "&id=$channelId";
        }
        //check cache
        $jsonResponse = @file_get_contents($queryString);
        if ($jsonResponse === false) {
            echo 'error';
            return false;
        }
        return $jsonResponse;
    }
    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $str="Please paste the channel id and press <enter>";
        $url = $this->ask($str);
        $channelId = $this->getYouTubeChannelIdByUrl($url);
        if ($channelId === 'user') {
            $channelType = 'User';
            $userId = $this->getYouTubeChannelIdByUserUrl($url);
            echo "\nUser Channel is $userId\n";
        } else {
            $channelType = 'Channel';
            echo "\n Channel Id is $channelId\n";
        }
        $channelInfo = json_decode($this->channelInfo($channelId, 'contentDetails,snippet', $channelId));
        $D=1;
    }
}