wp_post_revision_meta_keys( string $post_type ): array

Source

function wp_post_revision_meta_keys( $post_type ) {
	$registered_meta = array_merge(
		get_registered_meta_keys( 'post' ),
		get_registered_meta_keys( 'post', $post_type )
	);

	$wp_revisioned_meta_keys = array();

	foreach ( $registered_meta as $name => $args ) {
		if ( $args['revisions_enabled'] ) {
			$wp_revisioned_meta_keys[ $name ] = true;
		}
	}

	$wp_revisioned_meta_keys = array_keys( $wp_revisioned_meta_keys );

	/**
	 * Filter the list of post meta keys to be revisioned.
	 *
	 * @since 6.4.0
	 *
	 * @param array  $keys      An array of meta fields to be revisioned.
	 * @param string $post_type The post type being revisioned.
	 */
	return apply_filters( 'wp_post_revision_meta_keys', $wp_revisioned_meta_keys, $post_type );
}

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