您可以使用PHP这样获得视频ID：

You could get the video ID using PHP like this:

<?php

try {
    $videoId = getLiveVideoID('CHANNEL_ID');

    // Output the Chat URL
    echo "The Chat URL is https://www.***.com/live_chat?v=".$videoId;
} catch(Exception $e) {
    // Echo the generated error
    echo "ERROR: ".$e->getMessage();
}

// The method which finds the video ID
function getLiveVideoID($channelId)
{
    $videoId = null;

    // Fetch the livestream page
    if($data = file_get_contents('https://www.***.com/embed/live_stream?channel='.$channelId))
    {
        // Find the video ID in there
        if(preg_match('/\'VIDEO_ID\': \"(.*?)\"/', $data, $matches))
            $videoId = $matches[1];
        else
            throw new Exception('Couldn\'t find video ID');
    }
    else
        throw new Exception('Couldn\'t fetch data');

    return $videoId;
}