From 7bf64e01259ce51318bf0622db9f382056609c4d Mon Sep 17 00:00:00 2001
From: Scott Taylor <wonderboymusic@git.wordpress.org>
Date: Thu, 10 Sep 2015 20:50:12 +0000
Subject: [PATCH] Comments/PHP Notices: check that a parent comment exists
 before displaying an orphan's link to it in the admin.

Props rachelbaker.
Fixes #33710.


git-svn-id: https://develop.svn.wordpress.org/trunk@34015 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/edit-form-comment.php            | 24 ++++++++++---------
 .../includes/class-wp-comments-list-table.php |  8 ++++---
 2 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/src/wp-admin/edit-form-comment.php b/src/wp-admin/edit-form-comment.php
index d63420e106..dda2615134 100644
--- a/src/wp-admin/edit-form-comment.php
+++ b/src/wp-admin/edit-form-comment.php
@@ -119,17 +119,19 @@ if ( current_user_can( 'edit_post', $post_id ) ) {
 <?php
 if ( $comment->comment_parent ) :
 	$parent      = get_comment( $comment->comment_parent );
-	$parent_link = esc_url( get_comment_link( $comment->comment_parent ) );
-	$name        = get_comment_author( $parent->comment_ID );
-?>
-<div class="misc-pub-section misc-pub-reply-to">
-	<?php printf(
-		/* translators: comment link */
-		__( 'In reply to: %s' ),
-		'<b><a href="' . $parent_link . '">' . $name . '</a></b>'
-	); ?>
-</div>
-<?php endif; ?>
+	if ( $parent ) :
+		$parent_link = esc_url( get_comment_link( $comment->comment_parent ) );
+		$name        = get_comment_author( $parent->comment_ID );
+	?>
+	<div class="misc-pub-section misc-pub-reply-to">
+		<?php printf(
+			/* translators: comment link */
+			__( 'In reply to: %s' ),
+			'<b><a href="' . $parent_link . '">' . $name . '</a></b>'
+		); ?>
+	</div>
+<?php endif;
+endif; ?>
 
 <?php
 	/**
diff --git a/src/wp-admin/includes/class-wp-comments-list-table.php b/src/wp-admin/includes/class-wp-comments-list-table.php
index d8845e8eb9..b83a2ce861 100644
--- a/src/wp-admin/includes/class-wp-comments-list-table.php
+++ b/src/wp-admin/includes/class-wp-comments-list-table.php
@@ -607,9 +607,11 @@ class WP_Comments_List_Table extends WP_List_Table {
 
 		if ( $comment->comment_parent ) {
 			$parent = get_comment( $comment->comment_parent );
-			$parent_link = esc_url( get_comment_link( $parent ) );
-			$name = get_comment_author( $parent );
-			printf( ' | '.__( 'In reply to <a href="%1$s">%2$s</a>.' ), $parent_link, $name );
+			if ( $parent ) {
+				$parent_link = esc_url( get_comment_link( $parent ) );
+				$name = get_comment_author( $parent );
+				printf( ' | '.__( 'In reply to <a href="%1$s">%2$s</a>.' ), $parent_link, $name );
+			}
 		}
 
 		echo '</div>';