如何使用url永久嵌入Youtube在线聊天？ [英] How to embed Youtube live chat with url permanent?

问题描述

频道直播流的嵌入URL为：

The embed URL for a channel's live stream is:

https://www.youtube.com/embed/live_stream?channel=CHANNEL_ID

它可以工作，但是如果我想在附近嵌入YouTube实时聊天，当前用于嵌入的URL的流式传输是：

and it works but if I want to embed near at it a YouTube live chat for current streaming the URL that I use for the embed is:

https://www.youtube.com/live_chat?v=VIDEOID&embed_domain=DOMAINURL 

问题是这样的：对于每个新的实时流，视频ID都会更改。这样一来，嵌入的代码将不再有效，也不会在下一次流式传输中显示聊天。我希望永久性的URL实时聊天对我所有的YouTube流
有效，而无需每次手动更改视频ID。
如何解决？也许使用PHP或javascript中的脚本读取当前YouTube URL并替换聊天嵌入URL中的视频ID？
谢谢

The problem is this: for every new live stream the Video ID changes. So that the embedded code isn't valid anymore and chat isn't displayed for next streaming.I want a permanent URL live chat valid for all my YouTube streaming without change video id manually every time. How to resolve? Perhaps with a script in PHP or javascript that read current YouTube URL and replace video id in chat embed URL? thanks

推荐答案

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.youtube.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($data = file_get_contents('https://www.youtube.com/embed/live_stream?channel='.$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;
}

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