用户手机号+

application/common/library/Auth.php

@@ -555,7 +555,7 @@ class Auth
         $userinfo['im_auth_limit'] = $this->im_auth_limit() ? 1 : 0;
 
         //mobile与simplemobile互换，方便前端
-        $userinfo['fullmobile'] = '+'.$userinfo['mobile'];
+        $userinfo['fullmobile'] = $userinfo['mobile'] ? '+'.$userinfo['mobile'] : '';
         $userinfo['mobile']     = $userinfo['simplemobile'];
         unset($userinfo['simplemobile']);