From 756992ef2ee6faa740debb985069186c3c52bce0 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Thu, 27 Oct 2016 14:39:26 +0800
Subject: [PATCH] =?UTF-8?q?cache=E5=8A=A9=E6=89=8B=E5=87=BD=E6=95=B0?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81=E6=B8=85=E7=A9=BA=E6=93=8D=E4=BD=9C=20cache(?=
 =?UTF-8?q?null)=20=E6=88=96=E8=80=85=20cache(null,'tagName');?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 helper.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/helper.php b/helper.php
index e0cc719e..ba9f46ad 100644
--- a/helper.php
+++ b/helper.php
@@ -359,7 +359,9 @@ if (!function_exists('cache')) {
             // 缓存初始化
             return Cache::connect($name);
         }
-        if ('' === $value) {
+        if (is_null($name)) {
+            return Cache::clear($value);
+        } elseif ('' === $value) {
             // 获取缓存
             return 0 === strpos($name, '?') ? Cache::has(substr($name, 1)) : Cache::get($name);
         } elseif (is_null($value)) {