From 67a9aba082c27fdeb84ce2ff5d16ff8fc8897a73 Mon Sep 17 00:00:00 2001
From: Min-Soo Kim <misol.kr@gmail.com>
Date: Sun, 7 Jun 2020 23:03:52 +0900
Subject: [PATCH] Check is_countable in the DB.class.php

---
 classes/db/DB.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classes/db/DB.class.php b/classes/db/DB.class.php
index 244f73f1d..3e7249dce 100644
--- a/classes/db/DB.class.php
+++ b/classes/db/DB.class.php
@@ -902,7 +902,7 @@ class DB
 	 */
 	public function _dbInfoExists()
 	{
-		return ($this->master_db && count($this->slave_db));
+		return ($this->master_db && (is_countable($this->slave_db) && count($this->slave_db)));
 	}
 
 	/**