public function get_revision_ui_diff( $return, $compare_from, $compare_to ) {
		$meta = get_post_meta( $compare_from->ID );
		$meta = is_array( $meta ) ? $meta : [];

		foreach ( $meta as $key => $value ) {
			if ( $key[0] === '_' && $key !== papi_get_page_type_key() ) {
				continue;
			}

			$content_from = papi_data_get( $compare_from->ID, $key );
			$content_to = papi_data_get( $compare_to->ID, $key );

			$diff = wp_text_diff( $content_from, $content_to, [
				'show_split_view' => true
			] );

			if ( $diff ) {
				$return[] = [
					'id'   => $key,
					'name' => $key,
					'diff' => $diff,
				];
			}
		}

		return $return;
	}
public function get_revision_ui_diff( $return, $compare_from, $compare_to ) {
		$meta = get_post_meta( $compare_from->ID );
		$meta = is_array( $meta ) ? $meta : [];

		foreach ( $meta as $key => $value ) {
			if ( $key[0] === '_' && $key !== papi_get_page_type_key() ) {
				continue;
			}

			$content_from = papi_data_get( $compare_from->ID, $key );
			$content_to = papi_data_get( $compare_to->ID, $key );

			$diff = wp_text_diff( $content_from, $content_to, [
				'show_split_view' => true
			] );

			if ( $diff ) {
				$return[] = [
					'id'   => $key,
					'name' => $key,
					'diff' => $diff,
				];
			}
		}

		return $return;
	}
public function get_revision_ui_diff ( $ return , $ compare_from , $ compare_to ) { $ meta = get_post_meta ( $ compare_from -> ID ) ; $ meta = is_array ( $ meta ) ? $ meta : [ ] ; foreach ( $ meta as $ key => $ value ) { if ( $ key [ 0 ] === '_' && $ key !== papi_get_page_type_key ( ) ) { continue ; } $ content_from = papi_data_get ( $ compare_from -> ID , $ key ) ; $ content_to = papi_data_get ( $ compare_to -> ID , $ key ) ; $ diff = wp_text_diff ( $ content_from , $ content_to , [ 'show_split_view' => true ] ) ; if ( $ diff ) { $ return [ ] = [ 'id' => $ key , 'name' => $ key , 'diff' => $ diff , ] ; } } return $ return ; }
Filters the fields displayed in the post revision diff UI.

@param  array   $return
@param  WP_Post $compare_from
@param  WP_Post $compare_to

@return array
Filters the fields displayed in the post revision diff UI .