添加时候需要微信分享标志位

Code Review By Rock Zhang

@@ -132,7 +132,7 @@ class YuanxiaoController extends HuodongAction
 
         $this->_view->display('result', array(
             'staticTitle' => '元宵抽签',
-            'weixinShare' => $this->_isApp ? false : true, // 是否需要微信分享
+            'needShare' => $this->checkNeedShare(), // 是否需要微信分享
             'staticFile' => self::STATIC_FILE,
             'result' => $result,
             'shareUrl' => $shareUrl,
@@ -187,6 +187,19 @@ class YuanxiaoController extends HuodongAction
     }
 
     /**
+     * 判断是否需要微信分享
+     * @return bool
+     */
+    private function checkNeedShare()
+    {
+        if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false || $this->_isApp) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
      * 加密字符串
      *
      * @param string $data 需要加密的字符串