Title: Language_Pack_Upgrader::clear_destination
Published: February 22, 2019
Last modified: May 20, 2026

---

# Language_Pack_Upgrader::clear_destination( string $remote_destination ): bool|󠀁[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)󠁿

## In this article

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

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

Clears existing translations where this item is going to be installed into.

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

 `$remote_destination`stringrequired

The location on the remote filesystem to be cleared.

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

 bool|[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/) True
upon success, [WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)
on failure.

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

    ```php
    public function clear_destination( $remote_destination ) {
    	global $wp_filesystem;

    	$language_update    = $this->skin->language_update;
    	$language_directory = WP_LANG_DIR . '/'; // Local path for use with glob().

    	if ( 'core' === $language_update->type ) {
    		$files = array(
    			$remote_destination . $language_update->language . '.po',
    			$remote_destination . $language_update->language . '.mo',
    			$remote_destination . $language_update->language . '.l10n.php',
    			$remote_destination . 'admin-' . $language_update->language . '.po',
    			$remote_destination . 'admin-' . $language_update->language . '.mo',
    			$remote_destination . 'admin-' . $language_update->language . '.l10n.php',
    			$remote_destination . 'admin-network-' . $language_update->language . '.po',
    			$remote_destination . 'admin-network-' . $language_update->language . '.mo',
    			$remote_destination . 'admin-network-' . $language_update->language . '.l10n.php',
    			$remote_destination . 'continents-cities-' . $language_update->language . '.po',
    			$remote_destination . 'continents-cities-' . $language_update->language . '.mo',
    			$remote_destination . 'continents-cities-' . $language_update->language . '.l10n.php',
    		);

    		$json_translation_files = glob( $language_directory . $language_update->language . '-*.json' );
    		if ( $json_translation_files ) {
    			foreach ( $json_translation_files as $json_translation_file ) {
    				$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );
    			}
    		}
    	} else {
    		$files = array(
    			$remote_destination . $language_update->slug . '-' . $language_update->language . '.po',
    			$remote_destination . $language_update->slug . '-' . $language_update->language . '.mo',
    			$remote_destination . $language_update->slug . '-' . $language_update->language . '.l10n.php',
    		);

    		$language_directory     = $language_directory . $language_update->type . 's/';
    		$json_translation_files = glob( $language_directory . $language_update->slug . '-' . $language_update->language . '-*.json' );
    		if ( $json_translation_files ) {
    			foreach ( $json_translation_files as $json_translation_file ) {
    				$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );
    			}
    		}
    	}

    	$files = array_filter( $files, array( $wp_filesystem, 'exists' ) );

    	// No files to delete.
    	if ( ! $files ) {
    		return true;
    	}

    	// Check all files are writable before attempting to clear the destination.
    	$unwritable_files = array();

    	// Check writability.
    	foreach ( $files as $file ) {
    		if ( ! $wp_filesystem->is_writable( $file ) ) {
    			// Attempt to alter permissions to allow writes and try again.
    			$wp_filesystem->chmod( $file, FS_CHMOD_FILE );
    			if ( ! $wp_filesystem->is_writable( $file ) ) {
    				$unwritable_files[] = $file;
    			}
    		}
    	}

    	if ( ! empty( $unwritable_files ) ) {
    		return new WP_Error( 'files_not_writable', $this->strings['files_not_writable'], implode( ', ', $unwritable_files ) );
    	}

    	foreach ( $files as $file ) {
    		if ( ! $wp_filesystem->delete( $file ) ) {
    			return new WP_Error( 'remove_old_failed', $this->strings['remove_old_failed'] );
    		}
    	}

    	return true;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-admin/includes/class-language-pack-upgrader.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-admin/includes/class-language-pack-upgrader.php#L410)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/class-language-pack-upgrader.php#L410-L486)

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

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

Initializes the error.

  |

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

| Version | Description | 
| [5.1.0](https://developer.wordpress.org/reference/since/5.1.0/) | Introduced. |

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