From 06cb92c2d61f0ee1a331626f8ace12f0e730c491 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Tue, 4 Jul 2023 11:13:37 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3request=5Fcache=5Ftag?=
 =?UTF-8?q?=E5=88=A4=E6=96=AD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/think/middleware/CheckRequestCache.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/think/middleware/CheckRequestCache.php b/src/think/middleware/CheckRequestCache.php
index 885a048667..c3e7e57174 100644
--- a/src/think/middleware/CheckRequestCache.php
+++ b/src/think/middleware/CheckRequestCache.php
@@ -70,11 +70,11 @@ public function handle(Request $request, Closure $next, $cache = null): Response
 
             if ($cache) {
                 if (is_array($cache)) {
-                    [$key, $expire, $tag] = array_pad($cache, 3, null);
+                    [$key, $expire, $tag] = array_pad($cache, 3, '');
                 } else {
                     $key    = md5($request->url(true));
                     $expire = $cache;
-                    $tag    = null;
+                    $tag    = '';
                 }
 
                 $key = $this->parseCacheKey($request, $key);