From bb500e2c346e65a8f241f8c9316688ba509dedca Mon Sep 17 00:00:00 2001
From: MarkBaker <mark@demon-angel.eu>
Date: Tue, 27 Sep 2022 15:52:44 +0200
Subject: [PATCH] Scrutinizer tweak

---
 src/PhpSpreadsheet/Calculation/Calculation.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PhpSpreadsheet/Calculation/Calculation.php b/src/PhpSpreadsheet/Calculation/Calculation.php
index 4f95af54..5725795e 100644
--- a/src/PhpSpreadsheet/Calculation/Calculation.php
+++ b/src/PhpSpreadsheet/Calculation/Calculation.php
@@ -4866,7 +4866,7 @@ class Calculation
                 }
             } elseif (preg_match('/^' . self::CALCULATION_REGEXP_FUNCTION . '$/miu', $token ?? '', $matches)) {
                 // if the token is a function, pop arguments off the stack, hand them to the function, and push the result back on
-                if ($pCellParent) {
+                if ($cell !== null && $pCellParent !== null) {
                     $cell->attach($pCellParent);
                 }