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The Open Graph Protocol, invented by Facebook, provides a fixed vocabulary to embed meta data in a document head.
0
votes
How do I add Facebook OpenGraph meta tags for attachments in the header for a custom theme?
You can get all images attached to the current post with something like this :
$images = get_posts(
array(
'post_type' => 'attachment',
'post_mime_type' => 'image …