YouTube metabox

To get meta value in front-end, use get_post_meta() with meta key is youtube_id.

Example:

Print YouTube video ID:
ID, ‘youtube_id’, true);?>

Thumbnails:
<img src="http://img.youtube.com/vi/ID, ‘youtube_id’, true);?>/mqdefault.jpg” alt=”” />

Video player:

<iframe src="http://www.youtube.com/embed/ID, ‘youtube_id’, true); ?>” width=”588″ height=”331″ frameborder=”0″ allowfullscreen>

1. Upload youtube-metabox to the /wp-content/plugins/ directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress

1. 

   YouTube metabox in WP 3.7

2. 

   YouTube metabox in WP 3.8