'modified', ); } else { $source_args = array( 'field' => 'date', ); } $attributes['datetime'] = $source->get_value( $source_args, $block, 'datetime' ); } if ( isset( $source_args['field'] ) && 'modified' === $source_args['field'] ) { $classes[] = 'wp-block-post-date__modified-date'; } if ( empty( $attributes['datetime'] ) ) { // If the `datetime` attribute is set but empty, it could be because Block Bindings // set it that way. This can happen e.g. if the block is bound to the //