CI控制器上的未定义变量

Question

我在$PYParentID上遇到以下代码的问题。当我执行我的帖子操作时，我总会得到未定义的变量错误。我错过了什么吗？

错误消息

  

未定义的变量：PYParentID loc：C：\ xampp \ htdocs \ kawaguchi \ apps \ modules \ Account \ controllers \ D ownPaymentAp.php line：301

$this->db->insert(T_AccountPayableHeader, $PYHeader);

//print_r($PYParentID);die;

$PYParentID = $this->db->insert_id();
$detailPayment = $detail->first_row("array");
$payableID = $vendor->first_row("array");   

$PYDetail = array(

    T_AccountPayableDetail_RecordStatus => "",
    T_AccountPayableDetail_RecordUpdatedOn => date('Y-m-d g:i:s',now()),
    T_AccountPayableDetail_RecordUpdatedBy => $this->ezrbac->getCurrentUserID(),
    T_AccountPayableDetail_RecordUpdatedAt => $this->input->ip_address(),
    T_AccountPayableDetail_PRI => $PYParentID,
    T_AccountPayableDetail_DocTypeID => $headerData[T_MasterDataDownPayment_DocName],
    T_AccountPayableDetail_DocNo => $headerData[T_MasterDataDownPayment_DocNo],
    T_AccountPayableDetail_DocDate => $headerData[T_MasterDataDownPayment_DocDate],
    T_AccountPayableDetail_DueDate => "",
    T_AccountPayableDetail_DaysOverdue => "",
    T_AccountPayableDetail_InvoiceAmount => $headerData[T_MasterDataDownPayment_Amount],
    T_AccountPayableDetail_AmountPaid => $headerData[T_MasterDataDownPayment_TotalAmount],
    T_AccountPayableDetail_AmountOutstanding => "",
    T_AccountPayableDetail_Bank => $headerData[T_MasterDataDownPayment_BankAccountNo],
    T_AccountPayableDetail_SchedulePayment => "",
    T_AccountPayableDetail_PONo => $detailPayment[T_MasterDataDownPaymentDetail_PoNo],

);