Title: WP_REST_Site_Health_Controller::get_directory_sizes
Published: December 9, 2020
Last modified: August 20, 2026

---

# WP_REST_Site_Health_Controller::get_directory_sizes(): array|󠀁[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)󠁿

## In this article

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

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

Gets the current directory sizes for this install.

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

 array|[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)

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

    ```php
    public function get_directory_sizes() {
    	if ( ! class_exists( 'WP_Debug_Data' ) ) {
    		require_once ABSPATH . 'wp-admin/includes/class-wp-debug-data.php';
    	}

    	$this->load_admin_textdomain();

    	$sizes_data = WP_Debug_Data::get_sizes();
    	$all_sizes  = array( 'raw' => 0 );

    	foreach ( $sizes_data as $name => $value ) {
    		$name = sanitize_text_field( $name );
    		$data = array();

    		if ( isset( $value['size'] ) ) {
    			if ( is_string( $value['size'] ) ) {
    				$data['size'] = sanitize_text_field( $value['size'] );
    			} else {
    				$data['size'] = (int) $value['size'];
    			}
    		}

    		if ( isset( $value['debug'] ) ) {
    			if ( is_string( $value['debug'] ) ) {
    				$data['debug'] = sanitize_text_field( $value['debug'] );
    			} else {
    				$data['debug'] = (int) $value['debug'];
    			}
    		}

    		if ( ! empty( $value['raw'] ) ) {
    			$data['raw'] = (int) $value['raw'];
    		}

    		$all_sizes[ $name ] = $data;
    	}

    	if ( isset( $all_sizes['total_size']['debug'] ) && 'not available' === $all_sizes['total_size']['debug'] ) {
    		return new WP_Error( 'not_available', __( 'Directory sizes could not be returned.' ), array( 'status' => 500 ) );
    	}

    	return $all_sizes;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php#L283)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php#L283-L325)

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

| Uses | Description | 
| [WP_REST_Site_Health_Controller::load_admin_textdomain()](https://developer.wordpress.org/reference/classes/wp_rest_site_health_controller/load_admin_textdomain/)`wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php` |

Loads the admin textdomain for Site Health tests.

  | 
| [WP_Debug_Data::get_sizes()](https://developer.wordpress.org/reference/classes/wp_debug_data/get_sizes/)`wp-admin/includes/class-wp-debug-data.php` |

Fetches the sizes of the WordPress directories: `wordpress` (ABSPATH), `plugins`, `themes`, and `uploads`.

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

Retrieves the translation of $text.

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

Sanitizes a string from user input or from the database.

  | 
| [WP_Error::__construct()](https://developer.wordpress.org/reference/classes/wp_error/__construct/)`wp-includes/class-wp-error.php` |

Initializes the error.

  |

[Show 3 more](https://developer.wordpress.org/reference/classes/wp_rest_site_health_controller/get_directory_sizes/?output_format=md#)
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## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_rest_site_health_controller/get_directory_sizes/?output_format=md#changelog)󠁿

| Version | Description | 
| [5.6.0](https://developer.wordpress.org/reference/since/5.6.0/) | Introduced. |

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