php - 无法在 jquery 中访问或打印 Ajax 响应

Question

我从 ajax 调用中收到响应，但如何访问或至少打印该响应？

这是我的 ajax 调用

$.ajax({
         type: "POST",
         url: '../backorderReport.php',
         data: { from : from, to : to  },
         dataType: "JSON",
         success: function(data){
                    console.log(data[0].orderID); //not printing anything
                    console.log(data);            //not printing anything
         }
 });

这是我的 php 文件

$from = $_POST["from"];
$to = $_POST["to"];
$orders = $wpdb->get_results("SELECT * FROM wp_orderrecords WHERE orderDate BETWEEN '".$from."' AND '".$to."'");

foreach($orders as $order){
            $orderID = $order->orderID;
            $orderDate = $order->orderDate;
            $status = $order->status;
            $clientID = $order->clientID;
            $bill = $order->bill;
            $ship = $order->ship;
            $pay = $order->pay;
            $total = $order->total;
        $results = $wpdb->get_results("SELECT * FROM wp_clients WHERE clientID = '".$clientID."%'");     

           foreach($results as $order){
                  $clientsName = $order->clientsName;
           } 

           $c = str_replace(' ', " ", $clientsName);

           $orderItem = array(
                    'orderID' => $orderID,
                    'orderDate' => $orderDate,
                    'orderStatus' => $status,
                    'clientsName' => $c,
                    'bill' => $bill,
                    'ship' => $ship,
                    'pay' => $pay,
                    'total' => $total
                 );

           echo json_encode($orderItem);
}

我收到了这个回复

{"orderID":"26","orderDate":"2016-05-11","orderStatus":"Active","clientsName":"Pebbe\u00a0Kristel\u00a0A
\u00a0Bunoan","bill":"Billed","ship":"Delivered","pay":"Unpaid","total":"1200.00"}{"orderID":"27","orderDate"
:"2016-05-13","orderStatus":"Completed","clientsName":"Lovely\u00a0Carbon","bill":"Billed","ship":"Delivered"
,"pay":"Paid","total":"4650.00"}

如何打印响应并将数据放入表格中？感谢您的帮助!

Answer 1

对于与查询匹配的每条记录，您正在回显一个有效的 json 字符串。因此得到类似的东西:

{ record_1 } { record_2 }

这是无效的 json。你想要一个像这样的数组:

[{ record_1 },{ record_2 }]

稍微修改您的 php，如下所示:

 $from = $_POST["from"];
 $to = $_POST["to"];
 $orders = $wpdb->get_results("SELECT * FROM wp_orderrecords WHERE orderDate BETWEEN '".$from."' AND '".$to."'");

$records = [];      // adds an array for the records

foreach($orders as $order){
        $orderID = $order->orderID;
        $orderDate = $order->orderDate;
        $status = $order->status;
        $clientID = $order->clientID;
        $bill = $order->bill;
        $ship = $order->ship;
        $pay = $order->pay;
        $total = $order->total;
    $results = $wpdb->get_results("SELECT * FROM wp_clients WHERE clientID = '".$clientID."%'");     

       foreach($results as $order){
              $clientsName = $order->clientsName;
       } 

       $c = str_replace(' ', " ", $clientsName);

       $orderItem = array(
                'orderID' => $orderID,
                'orderDate' => $orderDate,
                'orderStatus' => $status,
                'clientsName' => $c,
                'bill' => $bill,
                'ship' => $ship,
                'pay' => $pay,
                'total' => $total
             );
       $records[] = $orderItem;  // push each order item on the array
 }
 echo json_encode($records);    // echo the array

ps:在回波之前测试边界条件，例如。未找到与查询匹配的记录，以及服务器端软件中可能潜藏的其他异常情况。