Ticket #36341: 36341.diff

src/wp-includes/user.php

@@ -414 +414 @@
 //
 
 /**
- * Get the current user's ID
+ * Retrieves the current user's ID.
  *
+ * Should be used only after the {@see 'init'} action has fired, as the current user
+ * is not set before that point in the loading order.
+ *
  * @since MU
  *
- * @return int The current user's ID
+ * @return int The current user's ID.
  */
 function get_current_user_id() {
         if ( ! function_exists( 'wp_get_current_user' ) )