From c6b095b626a44f6da2133cafea094a19a6cdabf2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Rodr=C3=ADguez?= <josecl@gmail.com>
Date: Sat, 1 Oct 2022 21:12:21 +0200
Subject: [PATCH] Reduces extra memory usage on `__destruct()` calls (#3094)

* fix: Reduces memory usage on __destruct() call

* docs: CHANGELOG.md

Co-authored-by: Jose Rodriguez <jose.rodriguez@zecovery.com>
---
 CHANGELOG.md                            | 2 +-
 src/PhpSpreadsheet/Collection/Cells.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9bf3d568..76832f6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,7 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Fixed
 
-- Nothing
+- Reduces extra memory usage on `__destruct()` calls
 
 
 ## 1.25.2 - 2022-09-25
diff --git a/src/PhpSpreadsheet/Collection/Cells.php b/src/PhpSpreadsheet/Collection/Cells.php
index 82c9ae1a..6183e733 100644
--- a/src/PhpSpreadsheet/Collection/Cells.php
+++ b/src/PhpSpreadsheet/Collection/Cells.php
@@ -465,7 +465,7 @@ class Cells
      */
     private function getAllCacheKeys()
     {
-        foreach ($this->getCoordinates() as $coordinate) {
+        foreach ($this->index as $coordinate => $value) {
             yield $this->cachePrefix . $coordinate;
         }
     }