(string|array)$args
Optional. Array or string of arguments. See WP_Site_Query::__construct() for information on accepted arguments. Default empty array.
Required: 否
Default: array()
返回值
(array|int) List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids', or the number of sites when 'count' is passed as a query var.