未定义索引：wc_order_id

Question

我想将数据导出到 CI 中的 excel。但我有问题Undefined index: wc_order_id如果我print_r(array_values($data)); exit;该值是正确的，只是我无法导出到 Excel。这是我的控制器：public function createExcel($awals, $akhirs, $status) {    $fileName = 'Reservation.xlsx';      $data['data'] = $this->M_reservation->all_order($awals, $akhirs, $status) ;    $spreadsheet = new Spreadsheet();    $sheet = $spreadsheet->getActiveSheet();    $total = 0;    $sheet->setCellValue('A1', 'No');   $sheet->setCellValue('B1', 'Booking ID');    $sheet->setCellValue('C1', 'Order Date');    $sheet->setCellValue('D1', 'Client Name');    $sheet->setCellValue('E1', 'Client Email');    $sheet->setCellValue('F1', 'Phone');    $sheet->setCellValue('G1', 'Inclution');    $sheet->setCellValue('H1', 'Room name');    $sheet->setCellValue('I1', 'Bed Order');    $sheet->setCellValue('J1', 'Status');    $sheet->setCellValue('K1', 'Total Order');    $rows = 2;    $no = 1;    $total=0;    foreach ($data as $val){        $sheet->setCellValue('A' . $rows, $no++);        $sheet->setCellValue('B' . $rows, $val['wc_order_id']);        $sheet->setCellValue('C' . $rows, $val['post_date']);        $sheet->setCellValue('D' . $rows, $val['display_name']);        $sheet->setCellValue('E' . $rows, $val['user_email']);        $sheet->setCellValue('F' . $rows, $val['meta_value']);        $sheet->setCellValue('G' . $rows, $val['display_name']);        $sheet->setCellValue('H' . $rows, $val['post_title']);        $sheet->setCellValue('I' . $rows, $val['room_num_search']);        $sheet->setCellValue('J' . $rows, $val['status']);        $sheet->setCellValue('K' . $rows, $val['total_order']);        $total = $total+$val['total_order'];        $rows++;          }

Answer 1

您正在存储值，$data['data']这意味着变量$data具有存储结果数组的key名称。data所以，你可以

依次通过$data['data']

$data['data'] = $this->M_reservation->all_order($awals, $akhirs, $status) ; // no change

// ...

// ...

foreach($data['data'] as $val){ // change here

    // your code here

}

或将结果数组存储在$data

$data = $this->M_reservation->all_order($awals, $akhirs, $status) ; // change here

// ...

// ...

foreach($data as $val){ // no change

    // your code here

}

看看它是否对你有帮助。