Title: site_search_columns
Published: August 16, 2016
Last modified: May 20, 2026

---

# apply_filters( ‘site_search_columns’, string[] $search_columns, string $search, WP_Site_Query $query )

## In this article

 * [Description](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#description)
 * [Parameters](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#wp--skip-link--target)

Filters the columns to search in a [WP_Site_Query](https://developer.wordpress.org/reference/classes/wp_site_query/)
search.

## 󠀁[Description](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#description)󠁿

The default columns include ‘domain’ and ‘path.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#parameters)󠁿

 `$search_columns`string[]

Array of column names to be searched.

`$search`string

Text being searched.

`$query`[WP_Site_Query](https://developer.wordpress.org/reference/classes/wp_site_query/)

The current [WP_Site_Query](https://developer.wordpress.org/reference/classes/wp_site_query/)
instance.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#source)󠁿

    ```php
    $search_columns = apply_filters( 'site_search_columns', $search_columns, $this->query_vars['search'], $this );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-site-query.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/class-wp-site-query.php#L627)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-site-query.php#L627-L627)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#related)󠁿

| Used by | Description | 
| [WP_Site_Query::get_site_ids()](https://developer.wordpress.org/reference/classes/wp_site_query/get_site_ids/)`wp-includes/class-wp-site-query.php` |

Used internally to get a list of site IDs matching the query vars.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/site_search_columns/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.6.0](https://developer.wordpress.org/reference/since/4.6.0/) | Introduced. |

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