如何从图像缩略图源获取 YouTube 视频 ID，并将其设置为 iframe? [英] how to get YouTube video id from image thumbnail source, and set as an iframe?

问题描述

所以如果图片标签是

<img src="http://i1.ytimg.com/vi/LL0Y4MZ45bo/0.jpg" class="youtubeimg"></img>

我不知道如何从缩略图 src 中提取 YouTube 视频 ID (LL0Y4MZ45bo)，然后将其应用于 iframe.

I don't know how to extract the YouTube video id (LL0Y4MZ45bo) from the thumbnail image src and then apply it to an iframe.

目前我有 100% 的工作，这将 src 应用到 iframe.但我不知道该怎么做是在这种情况下从 img 标签中获取 id LL0Y4MZ45bo 并将其添加到 youtube embed src http://www.youtube.com/embed/LL0Y4MZ45bo

currently i have 100% working, which applys the src to the iframe. but what i dont know how to do is get the id from the img tags in this case LL0Y4MZ45bo and add it to the youtube embed src http://www.youtube.com/embed/LL0Y4MZ45bo

<iframe src="" class="youtubeiframe"></iframe>

<script>
$(".youtubeiframe").attr({ 
  src: "http://www.youtube.com/embed/VIDEO-ID-EXTRACTED-FROM-THUMBNAIL-SRC",
});
</script>

那么如何从 img 中提取 id 并应用于 iframe src?

so how can I extract id from the img and apply to iframe src?

推荐答案

这提取了 使用正则表达式的 YouTube ID，我假设它至少有 11 个字符作为 第一个 YouTube 视频 ID 有 11.

This extracts the YouTube ID using a Regular Expression, I made the assumption that it would be a minimum of eleven characters as the first YouTube Video ID has 11.

<img src="http://i1.ytimg.com/vi/LL0Y4MZ45bo/0.jpg" class="youtubeimg"></img>
<iframe src="" class="youtubeiframe"></iframe>

<script>
    $(function (){
        var youtubeid = $(".youtubeimg").attr("src").match(/[w-]{11,}/)[0];
        $(".youtubeiframe").attr({ 
              src: "http://www.youtube.com/embed/" + youtubeid,
        });
    });
</script>

这有效，但是 YouTube Player API 可能会为您提供加载 iFrame 的更稳定解决方案，将来一旦稳定，我会推荐 YouTubeiFrame API

This works, however the YouTube Player API may provide you with a more stable solution to loading that iFrame, in the future once it becomes stable I would recommend the YouTube iFrame API

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