# wordpress-seo/28.6/src/llms-txt/application/markdown-builders/optional-link-list-builder.php

Yoast SEO – Advanced SEO with real-time guidance and built-in AI, version 28.6. 46 lines.

- Page: https://pluginprobe.com/plugins/wordpress-seo/28.6/code/src/llms-txt/application/markdown-builders/optional-link-list-builder.php
- Raw: https://pluginprobe.com/plugins/wordpress-seo/28.6/raw/src/llms-txt/application/markdown-builders/optional-link-list-builder.php
- Modified: 2025-12-02T13:31:04+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/wordpress-seo/28.6/code/src/llms-txt/application/markdown-builders/optional-link-list-builder.php#L10-L20`.

```php
<?php

// phpcs:disable Yoast.NamingConventions.NamespaceName.TooLong
namespace Yoast\WP\SEO\Llms_Txt\Application\Markdown_Builders;

use Yoast\WP\SEO\Llms_Txt\Domain\Markdown\Sections\Link_List;
use Yoast\WP\SEO\Llms_Txt\Infrastructure\Markdown_Services\Sitemap_Link_Collector;

/**
 * The builder of the intro section.
 */
class Optional_Link_List_Builder {

	/**
	 * The sitemap link collector.
	 *
	 * @var Sitemap_Link_Collector
	 */
	private $sitemap_link_collector;

	/**
	 * The constructor.
	 *
	 * @param Sitemap_Link_Collector $sitemap_link_collector The sitemap link collector.
	 */
	public function __construct(
		Sitemap_Link_Collector $sitemap_link_collector
	) {
		$this->sitemap_link_collector = $sitemap_link_collector;
	}

	/**
	 * Builds the optional link list.
	 *
	 * @return Link_List The optional link list.
	 */
	public function build_optional_link_list(): Link_List {
		$sitemap_link = $this->sitemap_link_collector->get_link();
		if ( $sitemap_link === null ) {
			return new Link_List( 'Optional', [] );
		}

		return new Link_List( 'Optional', [ $sitemap_link ] );
	}
}

```