wp-includes/post.php:6934Updates metadata for an attachment.
$attachment_idint$dataarrayint|boolOne hook fires while wp_update_attachment_metadata() runs, in this order:
Filters the updated attachment meta data.
function wp_update_attachment_metadata( $attachment_id, $data ) { $attachment_id = (int) $attachment_id; $post = get_post( $attachment_id ); if ( ! $post ) { return false; } /** * Filters the updated attachment meta data. * * @since 2.1.0 * * @param array $data Array of updated attachment meta data. * @param int $attachment_id Attachment post ID. */ $data = apply_filters( 'wp_update_attachment_metadata', $data, $post->ID ); if ( $data ) { return update_post_meta( $post->ID, '_wp_attachment_metadata', $data ); } else { return delete_post_meta( $post->ID, '_wp_attachment_metadata' ); }}Introduced in 2.1.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
int|false to int|bool.verified against sourcesrc/wp-includes/post.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.