未定义索引：cakephp 中的用户类型名称

Question

控制器部件代码

$Viewcustomer=$this->Viewcustomer->query("SELECT GROUP_CONCAT(usertype_name SEPARATOR ',') as usertypename, customer_name FROM `pre`.`customer` AS `Viewcustomer` WHERE `Viewcustomer`.`customer_status` = 0 AND `Viewcustomer`.`customer_type` = 'B1'  
GROUP BY `customer_id`  DESC"); 
$this->set("Viewcustomer",$Viewcustomer);

查看零件代码

 foreach($Viewcustomer as $customers){
  echo  $customers['Viewcustomer']['usertypename'];
    }

Answer 1

usertypename不应该进来$customers['Viewcustomer']['usertypename'];
这应该是
$customers['0']['usertypename'];
请打印您的数组并分享您的代码