From 64f2a546f083569b8a7c85313d8e323221c86266 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <swissspidy@git.wordpress.org>
Date: Thu, 11 May 2017 19:20:10 +0000
Subject: [PATCH] Themes: Avoid PHP warnings in the admin when no theme
 directory exists.

Props iseulde, chris_dev, swissspidy.
Fixes #35521.


git-svn-id: https://develop.svn.wordpress.org/trunk@40636 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/theme-install.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/wp-admin/theme-install.php b/src/wp-admin/theme-install.php
index eb956f4380..dd9ff500d1 100644
--- a/src/wp-admin/theme-install.php
+++ b/src/wp-admin/theme-install.php
@@ -28,6 +28,11 @@ if ( ! is_network_admin() ) {
 }
 
 $installed_themes = search_theme_directories();
+
+if ( false === $installed_themes ) {
+	$installed_themes = array();
+}
+
 foreach ( $installed_themes as $k => $v ) {
 	if ( false !== strpos( $k, '/' ) ) {
 		unset( $installed_themes[ $k ] );