render_block_core_comments_pagination_previous

Renders the `core/comments-pagination-previous` block on the server.

function render_block_core_comments_pagination_previous( $attributes, $content, $block ) {
	$default_label    = __( 'Older Comments' );
	$label            = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? $attributes['label'] : $default_label;
	$pagination_arrow = get_comments_pagination_arrow( $block, 'previous' );
	if ( $pagination_arrow ) {
		$label = $pagination_arrow . $label;
	}

	$filter_link_attributes = function() {
		return get_block_wrapper_attributes();
	};
	add_filter( 'previous_comments_link_attributes', $filter_link_attributes );

	$previous_comments_link = get_previous_comments_link( $label );

	remove_filter( 'previous_comments_link_attributes', $filter_link_attributes );

	if ( ! isset( $previous_comments_link ) ) {
		return '';
	}

	return $previous_comments_link;
}