From 5da8bd962a47a3188b2d94b20bc6448a49a8189b Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Thu, 29 Jun 2017 16:29:49 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9B=E7=BC=93=E5=AD=98=E6=A0=87?=
 =?UTF-8?q?=E7=AD=BE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 library/think/cache/Driver.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/library/think/cache/Driver.php b/library/think/cache/Driver.php
index 688507a8..ab48bdd6 100644
--- a/library/think/cache/Driver.php
+++ b/library/think/cache/Driver.php
@@ -170,8 +170,9 @@ abstract class Driver
             $key       = 'tag_' . md5($this->tag);
             $this->tag = null;
             if ($this->has($key)) {
-                $value = $this->get($key);
-                $value .= ',' . $name;
+                $value   = explode(',', $this->get($key));
+                $value[] = $name;
+                $value   = implode(',', array_unique($value));
             } else {
                 $value = $name;
             }