From 01a61186605a87e95f89870a51c75de5519d82d1 Mon Sep 17 00:00:00 2001
From: johnbillion <johnbillion@602fd350-edb4-49c9-b593-d223f7449a82>
Date: Sun, 4 Dec 2016 19:23:53 +0000
Subject: [PATCH] Users: Clarify the return value of `get_current_user_id()`
 for non-logged-in users.

Props ovenall
Fixes #39051


git-svn-id: https://develop.svn.wordpress.org/trunk@39486 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/user.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wp-includes/user.php b/src/wp-includes/user.php
index 028606385b..6f5dae67f9 100644
--- a/src/wp-includes/user.php
+++ b/src/wp-includes/user.php
@@ -420,7 +420,7 @@ function count_many_users_posts( $users, $post_type = 'post', $public_only = fal
  *
  * @since MU
  *
- * @return int The current user's ID
+ * @return int The current user's ID, or 0 if no user is logged in.
  */
 function get_current_user_id() {
 	if ( ! function_exists( 'wp_get_current_user' ) )