Title: WP_MS_Sites_List_Table::get_columns
Published: April 25, 2014
Last modified: August 20, 2026

---

# WP_MS_Sites_List_Table::get_columns(): string[]

## In this article

 * [Return](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#source)
 * [Hooks](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#hooks)
 * [Related](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#changelog)

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

Gets an array of column titles keyed by their column name.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#return)󠁿

 string[] Array of column titles keyed by their column name.

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

    ```php
    public function get_columns() {
    	$sites_columns = array(
    		'cb'          => '<input type="checkbox" />',
    		'blogname'    => __( 'URL' ),
    		'lastupdated' => __( 'Last Updated' ),
    		'registered'  => _x( 'Registered', 'site' ),
    		'users'       => __( 'Users' ),
    	);

    	if ( has_filter( 'wpmublogsaction' ) ) {
    		$sites_columns['plugins'] = __( 'Actions' );
    	}

    	/**
    	 * Filters the displayed site columns in Sites list table.
    	 *
    	 * @since MU (3.0.0)
    	 *
    	 * @param string[] $sites_columns An array of displayed site columns. Default 'cb',
    	 *                               'blogname', 'lastupdated', 'registered', 'users'.
    	 */
    	return apply_filters( 'wpmu_blogs_columns', $sites_columns );
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-admin/includes/class-wp-ms-sites-list-table.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-admin/includes/class-wp-ms-sites-list-table.php#L383)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-admin/includes/class-wp-ms-sites-list-table.php#L383-L405)

## 󠀁[Hooks](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#hooks)󠁿

 [apply_filters( ‘wpmu_blogs_columns’, string[] $sites_columns )](https://developer.wordpress.org/reference/hooks/wpmu_blogs_columns/)

Filters the displayed site columns in Sites list table.

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

| Uses | Description | 
| [has_filter()](https://developer.wordpress.org/reference/functions/has_filter/)`wp-includes/plugin.php` |

Checks if any filter has been registered for a hook.

  | 
| [__()](https://developer.wordpress.org/reference/functions/__/)`wp-includes/l10n.php` |

Retrieves the translation of $text.

  | 
| [_x()](https://developer.wordpress.org/reference/functions/_x/)`wp-includes/l10n.php` |

Retrieves translated string with gettext context.

  | 
| [apply_filters()](https://developer.wordpress.org/reference/functions/apply_filters/)`wp-includes/plugin.php` |

Calls the callback functions that have been added to a filter hook.

  |

[Show 2 more](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#)
[Show less](https://developer.wordpress.org/reference/classes/wp_ms_sites_list_table/get_columns/?output_format=md#)

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

| Version | Description | 
| [3.1.0](https://developer.wordpress.org/reference/since/3.1.0/) | Introduced. |

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