From 9d9f0b34c5a8856c85ff48ab894c7aae10c3324e Mon Sep 17 00:00:00 2001
From: Phil Tyler <phil.tyler@pantheon.io>
Date: Fri, 6 Dec 2024 13:07:44 -0800
Subject: [PATCH] Check one or the other not both

---
 object-cache.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/object-cache.php b/object-cache.php
index 1dab4ae..87d7ded 100644
--- a/object-cache.php
+++ b/object-cache.php
@@ -1226,9 +1226,12 @@ protected function _connect_redis() {
 	 *               not with a message describing the issue.
 	 */
 	public function check_client_dependencies() {
-		$has_relay = defined( 'WP_REDIS_USE_RELAY' ) && WP_REDIS_USE_RELAY && class_exists( 'Relay\Relay' );
+		$class_to_check = 'Redis';
+		if (defined( 'WP_REDIS_USE_RELAY' ) && WP_REDIS_USE_RELAY ) {
+			$class_to_check = 'Relay\Relay';
+		}
 
-		if ( ! $has_relay || ! class_exists( 'Redis' ) ) {
+		if ( ! class_exists( $class_to_check ) ) {
 			return 'Warning! PHPRedis extension is unavailable, which is required by WP Redis object cache.';
 		}
 		return true;