如何从其他页面获取值

Question

我使用 $_POST 来获取 order_id 的值，但它并没有立即获得。我需要首先单击“显示食物”按钮或任何按钮（如下图所示）以弹出我要输出的表格。我尝试使用 if(isset($_SESSION['viewOrder'])) 在 order.php 中获取按钮的值，但即使我使用 SESSION，它也没有在 ordermodal 中得到它。如何获取按钮 viewOrder 的值？

如果我将 WHERE order_id=$order_id 更改为 WHERE order_id=724，它将立即弹出该数字的值 (724)，但它是我在食物表中所有订单的输出。所以我的问题是如何为特定的 order_id 输出正确的输出？

示例我有 2 个订单 order_id 1 和 order_id 2，1 的值是汉堡和披萨，2 的值是沙拉和三明治，所以当我点击 order_id 1（在 order.php 中查看订单按钮）时，值那张食物表只有汉堡和比萨饼，然后当我点击 order_id 2（在 order.php 中查看订单按钮）时，值应该是沙拉和三明治，而不是汉堡和比萨饼。

我希望你能理解我的解释，我希望你的帮助，我真的需要马上解决这个问题。我已经在这个问题上堆积了几天。真的很感谢你们的帮助。非常感谢！

This is my error

This is what I get when clicking a button inside the ordermodal.php

这是我的 order.php 代码。

<button type="button" 
<?php if($order['order_status'] == 'Dispatched'){ ?> input style="background-color:#ffff00;color:black"
 <?php } else if($order['order_status'] == 'Accepted'){ ?> input style="background-color:#0000ff;color:white" <?php } else if($order['order_status'] == 'Pending'){ ?> input style="background-color:#B0C4DE;color:black" { <?php } ?>
 class="btn btn-success" data-toggle="modal" data-target="#myModal" onclick="viewOrder( '<?= $order['order_id'] ?>', '<?= $order['order_id'] ?>', '<?= $order['user_id'] ?>', '<?= $date ?>', '<?= $time ?>', '<?= $order['order_deliveryCharge'] ?>', '<?= $order['order_totalAmount'] ?>', '<?= $order['address'] ?>', '<?= $order['coordinates'] ?>', '<?= $order['driver_number'] ?>', '<?= $order['order_status'] ?>')"> View Order </button>

<script>
 function viewOrder(order_id, order_id, user_id, order_date, order_time, order_deliveryCharge, order_totalAmount, address, coordinates, driver_number, order_status) { 
 document.getElementById("titleModal").innerHTML = "Order Information";
 document.getElementsByName("ORDER_ID")[0].setAttribute("value", order_id); 
 document.getElementsByName("ORDER_ID_MODAL_2")[0].setAttribute("value", order_id);
 document.getElementsByName("user_id")[0].setAttribute("value", user_id);
 document.getElementsByName("order_date")[0].setAttribute("value", order_date); 
 document.getElementsByName("order_time")[0].setAttribute("value", order_time); 
 document.getElementsByName("order_deliveryCharge")[0].setAttribute("value", order_deliveryCharge); 
 document.getElementsByName("order_totalAmount")[0].setAttribute("value", order_totalAmount); 
 document.getElementsByName("address")[0].setAttribute("value", address);
 document.getElementsByName("coordinates")[0].setAttribute("value", coordinates); 
 document.getElementsByName("drivers_number")[0].setAttribute("value", driver_number); 
 document.getElementsByName("order_status")[0].setAttribute("value", order_status);  
 document.getElementsByName("viewOrder")[0].setAttribute("name", "viewOrder");

 }
 </script>

这是我的 ordermodal.php 代码

<div class="form-group">
 <label for="order_id" class="col-sm-2 control-label">Order ID</label>
 <div class="col-lg-3"> 
 <input type="text" input style="width:500px" class="form-control" name="ORDER_ID" id="ORDER_ID" placeholder="" value="" required="required" readonly> 
</div>
</div>

 <?php 

if(isset($_POST['ORDER_ID'])){  
$order_id = trim(addslashes($_POST['ORDER_ID']));
$sql = "SELECT food_name, special_request, quantity, amount 
FROM cart_tbl
WHERE order_id=$order_id";
$result = mysqli_query(connection2(), $sql);}
?>
<table class="table table-hover table-bordered">
 <thead>
 <tr> 
 <th>Food</th>
 <th>Special Request</th>
 <th>Quantity</th>
 <th>Amount</th> 
 </tr>
 </thead> 
 <?php
if(mysqli_num_rows($result)>0)
{
    while($row = mysqli_fetch_array($result))
    {
?>
<tr>
<td><?php echo $row["food_name"];?></td>
<td><?php echo $row["special_request"];?></td>
<td><?php echo $row["quantity"];?></td>
<td><?php echo $row["amount"];?></td>
</tr>
<?php
    }
}
?>

</table>
 </div>
 <div class="modal-footer">
<button type="submit" input style="background-color:##FF0000;color:white;float:left" name="showFood" id="showFood" class="btn btn-primary " onclick="if(!confirm('Are you sure you want to see food order?')){return false;}" > Show Food</button>
<button type="submit" input style="background-color:#4CAF50;color:white" name="submitDelivered" id="submitDelivered" class="btn btn-primary " onclick="if(!confirm('Are you sure you want to deliver order?')){return false;}" > Delivered </button>
<button type="submit" input style="background-color:#0000FF;color:white" name="submitAccept" id="submitAccept" class="btn btn-primary" onclick="if(!confirm('Are you sure you want to accept order?')){return false;}"> Accept </button>
 <button type="button" style="background-color:#FFFF00;color:black" class="btn btn-success" data-toggle="modal" data-target="#myDropdown"> Send </button> 
 <button type="submit" input style="background-color:#f44336;color:white" name="submitCancel" class="btn btn-danger" onclick="if(!confirm('Are you sure you want to cancel order?')){return false;}">Cancel</button> 

Answer 1

改变这一行

document.getElementsByName("ORDER_ID")[0].setAttribute("value", order_id);

到

document.getElementsByName("ORDER_ID")[1].setAttribute("value", order_id);