Resolve undefined index notice

5d1d11a5 · Erick Hitter · 9b0ebc72 · 5d1d11a5
Commit 5d1d11a5 authored Feb 27, 2014 by Erick Hitter
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index-wp-redis.php index-wp-redis.php +1 -1

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--- a/index-wp-redis.php
+++ b/index-wp-redis.php
@@ -159,7 +159,7 @@ function wp_redis_cache_set_device_key( $key ) {
 * @return string
 */
 function wp_redis_cache_get_device_type() {
-	$ua = $_SERVER['HTTP_USER_AGENT'];
+	$ua = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : '';

 	if ( empty( $ua ) ) {
 		return 'desktop';