Upgrade a language pack.

$update string|false Optional

Whether an update offer is available.

Default: false

$args array Optional

Other optional arguments, see Language_Pack_Upgrader::bulk_upgrade().

More Arguments from Language_Pack_Upgrader::bulk_upgrade( ... $args )

Other arguments for upgrading multiple language packs.

• clear_update_cachebool
  Whether to clear the update cache when done.
  Default true.

Default: array()

array|bool|WP_Error The result of the upgrade, or a WP_Error object instead.

File: wp-admin/includes/class-language-pack-upgrader.php. View all references

public function upgrade( $update = false, $args = array() ) {
	if ( $update ) {
		$update = array( $update );
	}

	$results = $this->bulk_upgrade( $update, $args );

	if ( ! is_array( $results ) ) {
		return $results;
	}

	return $results[0];
}