From c8d8610a155d2793cb11825f9df9994c67d0545f Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov.ru@gmail.com>
Date: Mon, 30 Jun 2014 11:03:14 +0000
Subject: [PATCH] Avoid a PHP notice in wp_new_comment() if user ID is not
 passed.

see #23231.
Built from https://develop.svn.wordpress.org/trunk@28922


git-svn-id: http://core.svn.wordpress.org/trunk@28721 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/comment.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index 9629c58a28..dd45821c34 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -1745,7 +1745,8 @@ function wp_new_comment( $commentdata ) {
 	if ( isset( $commentdata['user_ID'] ) ) {
 		$commentdata['user_id'] = $commentdata['user_ID'] = (int) $commentdata['user_ID'];
 	}
-	$prefiltered_user_id = $commentdata['user_id'];
+
+	$prefiltered_user_id = ( isset( $commentdata['user_id'] ) ) ? (int) $commentdata['user_id'] : 0;
 
 	/**
 	 * Filter a comment's data before it is sanitized and inserted into the database.