This action is documented in wp-includes/meta.php
update_postmeta
This action is documented in wp-includes/meta.php
update_{$meta_type}_meta
This action is documented in wp-includes/meta.php
update_{$meta_type}_metadata
Filters whether to update metadata of a specific type.
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added_{$meta_type}_meta
Fires immediately after meta of a specific type is added.
add_{$meta_type}_meta
Fires immediately before meta of a specific type is added.
add_{$meta_type}_metadata
Filters whether to add metadata of a specific type.
attachment_url_to_postid
Filters an attachment id found by URL.
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get_post_gallery
Filters the first-found post gallery.
get_post_galleries
Filters the list of all found galleries in the given post.
media_embedded_in_content_allowed_types
Filters the embedded media types that are allowed to be returned from the content blob.
get_attached_media
Filters the list of media attached to the given post.
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get_attached_media_args
Filters arguments used to retrieve media attached to the given post.
wp_enqueue_media
Fires at the conclusion of wp_enqueue_media().
media_view_strings
Filters the media view strings.