From a57529c720bf4bed3c438edf162caea342a85e2e Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov@git.wordpress.org>
Date: Fri, 13 Sep 2013 09:36:08 +0000
Subject: [PATCH] Avoid a PHP warning in network admin if a constant
 corresponding to a drop-in is not defined. fixes #25301.

git-svn-id: https://develop.svn.wordpress.org/trunk@25425 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/includes/class-wp-plugins-list-table.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wp-admin/includes/class-wp-plugins-list-table.php b/src/wp-admin/includes/class-wp-plugins-list-table.php
index 956840e5a1..9e648498fe 100644
--- a/src/wp-admin/includes/class-wp-plugins-list-table.php
+++ b/src/wp-admin/includes/class-wp-plugins-list-table.php
@@ -321,7 +321,7 @@ class WP_Plugins_List_Table extends WP_List_Table {
 			if ( true === ( $dropins[ $plugin_file ][1] ) ) { // Doesn't require a constant
 				$is_active = true;
 				$description = '<p><strong>' . $dropins[ $plugin_file ][0] . '</strong></p>';
-			} elseif ( constant( $dropins[ $plugin_file ][1] ) ) { // Constant is true
+			} elseif ( defined( $dropins[ $plugin_file ][1] ) && constant( $dropins[ $plugin_file ][1] ) ) { // Constant is true
 				$is_active = true;
 				$description = '<p><strong>' . $dropins[ $plugin_file ][0] . '</strong></p>';
 			} else {