From ef1089196ca85aebe15cc2ca982d7aa0016ca4ed Mon Sep 17 00:00:00 2001
From: sugar1569 <sugar1569@vip.qq.com>
Date: Thu, 14 Feb 2019 10:34:11 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E8=BF=87=E6=BB=A4=E6=98=B5?=
 =?UTF-8?q?=E7=A7=B0=E5=AD=97=E7=AC=A6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 application/common.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/application/common.php b/application/common.php
index 519a6707..08eae7aa 100644
--- a/application/common.php
+++ b/application/common.php
@@ -57,4 +57,16 @@ function makePathToUrl($path,$type = 2)
         return trim(str_replace(DS, '/',UPLOAD_PATH.$path),'.');
     }else return '';
 
+}
+// 过滤掉emoji表情
+function filterEmoji($str)
+{
+    $str = preg_replace_callback(    //执行一个正则表达式搜索并且使用一个回调进行替换
+        '/./u',
+        function (array $match) {
+            return strlen($match[0]) >= 4 ? '' : $match[0];
+        },
+        $str);
+
+    return $str;
 }
\ No newline at end of file