From 471e3d8954242779c32b2d0ae638883aacf14445 Mon Sep 17 00:00:00 2001
From: Matias Griese <matias@trilbymedia.com>
Date: Tue, 23 Apr 2019 10:54:26 +0300
Subject: [PATCH] Revert "Use Null Coalesce Operator (#2466)"

This reverts commit be8eb639
---
 system/src/Grav/Framework/Cache/Adapter/MemoryCache.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php b/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php
index ea502dc4c..2d0fe40bd 100644
--- a/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php
+++ b/system/src/Grav/Framework/Cache/Adapter/MemoryCache.php
@@ -27,7 +27,11 @@ class MemoryCache extends AbstractCache
 
     public function doGet($key, $miss)
     {
-        return $this->cache[$key] ?? $miss;
+        if (!array_key_exists($key, $this->cache)) {
+            return $miss;
+        }
+
+        return $this->cache[$key];
     }
 
     public function doSet($key, $value, $ttl)