Ticket #37865: 37865.2.diff

src/wp-includes/ms-functions.php

@@ -109 +109 @@
  * The count is cached and updated twice daily. This is not a live count.
  *
  * @since MU 1.0
+ * @since 3.7.0 The $network_id parameter has been deprecated.
+ * @since 4.8.0 The $network_id parameter is now being used.
  *
- * @param int $network_id Deprecated, not supported.
- * @return int
+ * @param int|null $network_id ID of the network. Default is the current network.
+ * @return int Number of active sites on the network.
  */
-function get_blog_count( $network_id = 0 ) {
-        if ( func_num_args() )
-                _deprecated_argument( __FUNCTION__, '3.1.0' );
-
-        return get_site_option( 'blog_count' );
+function get_blog_count( $network_id = null ) {
+        return get_network_option( $network_id, 'blog_count' );
 }
 
 /**