修改意见

@@ -292,8 +292,10 @@ class SignController extends RestBaseController
 
 
         $date=date("w",time()); //这个可以获取数字星期比如123，注意0是星期日
         $date=date("w",time()); //这个可以获取数字星期比如123，注意0是星期日
         $config=Db::name('sign_image')->where('date',$date)->find();
         $config=Db::name('sign_image')->where('date',$date)->find();
-        $music=json_decode($config['music'],true);
-        $music=$music[rand(0,count($music,0)-1)];
+        if (!empty($config['music'])) {
+            $music = json_decode($config['music'], true);
+            $music = $music[rand(0, count($music, 0) - 1)];
+        }
         $this->success('渲染数据',array(
         $this->success('渲染数据',array(
             'background'=>cmf_get_image_preview_url($config['image']),
             'background'=>cmf_get_image_preview_url($config['image']),
             'music'=>cmf_get_file_download_url($music['url']),
             'music'=>cmf_get_file_download_url($music['url']),