cash_back 定义

www/protected/controllers/RechargeController.php

@@ -109,7 +109,7 @@ class RechargeController extends AdminController {
         if (!isset($denomination)) {
             CommonFn::requestAjax(false, '必须填写面额！');
         }
-
+        $cash_back = 0;
         if ($select_fun == 'coupon') {
             //数组分割处理
             $coupons = explode("<br />",nl2br(trim(Yii::app()->request->getParam('coupons'))));