From b70876ac80759fbf168c91cdffd7a2b2305e27cb Mon Sep 17 00:00:00 2001
From: Taylor Otwell <taylorotwell@gmail.com>
Date: Thu, 6 Aug 2020 08:14:29 -0500
Subject: [PATCH] add boolean

---
 src/Illuminate/Database/Eloquent/Concerns/GuardsAttributes.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Illuminate/Database/Eloquent/Concerns/GuardsAttributes.php b/src/Illuminate/Database/Eloquent/Concerns/GuardsAttributes.php
index 1b1ef3138f3e..55dc50a51c15 100644
--- a/src/Illuminate/Database/Eloquent/Concerns/GuardsAttributes.php
+++ b/src/Illuminate/Database/Eloquent/Concerns/GuardsAttributes.php
@@ -163,7 +163,7 @@ public function isFillable($key)
      */
     public function isGuarded($key)
     {
-        if (strpos($key, '->')) {
+        if (strpos($key, '->') !== false) {
             $key = Str::before($key, '->');
         }