优化错误

application/third_party/tuniu/controllers/tuniu_train.php

@@ -43,6 +43,7 @@ class Tuniu_train extends CI_Controller{
 			//做超过预售期的处理查询
 			$isCache = false;
 			$iseven = false;
+			$cachedata = false;
 			$now_time = time();
 			$differ = (strtotime($date) - $now_time) / 86400;
 			if($differ > 29){
@@ -64,7 +65,7 @@ class Tuniu_train extends CI_Controller{
 			$api_start_time = microtime(true);		
 			
 			$back_data = post_tuniu($url,$post_data,$method = 'POST');
-			$back_data = null;
+			//$back_data = null;
 			//接口结束时间
 			$api_end_time = microtime(true);