如何使用Ajax和其他非数组数据将JavaScript数组发送到PHP脚本? [英] How can I send a javascript array to a PHP script using Ajax along with other non-array data?

问题描述

我有一个网站，用户可以在其中订购商品.我目前正在向PHP脚本发送各种信息，以便可以从那里将它们添加到数据库中:

I have a site where users can order items. I am currently sending various bits of information to the PHP script so they can be added to the database from there:

$.ajax ({
  type: "POST",
  url: "./pay.php",
  dataType: "json",
  data: {
    "firstName" : firstName,
    "lastName" : lastName,
    "email" : email,
    "price" : price
  }  
});

这很好.现在，我想发送两个包含ID和已订购产品数量的数组.由于我不知道给定时间点有多少个产品或它们的ID是什么，因此无法像上面所做的那样将它们添加为单独的项目.目前，我在单独的数组中具有产品ID及其对应的数量，例如:

This is working well. Now I would like to send over two arrays that contain the id's and quantities of products that were ordered. Since I don't know how many products there are at any given point or what their id is, I cannot add them as individual items as I have done above. Currently I have the product ID's and their corresponding quantities in separate arrays as such:

productIds: ["6", "1"]
quantities: ["1", "4"]

我想将这些数组与其余变量一起发送到PHP脚本，以便我可以遍历这些数组并将信息插入数据库中.

I would like to send these arrays to the PHP script along with the rest of the variables so I can loop through those arrays and insert the information into the database.

我可以这样吗?

$.ajax ({
      type: "POST",
      url: "./pay.php",
      dataType: "json",
      data: {
        "firstName" : firstName,
        "lastName" : lastName,
        "email" : email,
        "price" : price,
        "productIds" : productIds,
        "quantities" : quantities
      }  
 });

我目前可以在PHP脚本中像这样访问非数组变量:

The non-array variables I am currently able to access like this in the PHP script:

$email = $_POST['email'];
$firstName = $_POST['firstName'];
$lastName = $_POST['lastName'];
$price = $_POST['price'];

我想像这样在PHP脚本中循环遍历productIds数组，但是我想我缺少了一些东西:

I would like to loop through the productIds array in the PHP script something like this, but I think I am missing something:

$i = 1;
foreach ($_POST['productIds'] as $value) {
  $sql = 'INSERT INTO orders SET
  product_id = "'.$_POST['productIds'][$i].'",
  quantity = "'.$_POST['quantities'][$i].'"';

  $result = $conn->query($sql);
  $i++;
}

如何使用Ajax和其他非数组数据将JavaScript数组发送到PHP脚本?

How can I send a javascript array to a PHP script using Ajax along with other non-array data?

推荐答案

只需将数组传递给data参数

Just pass the arrays to the data parameter

var productIds = ["6", "1"];
var quantities = ["1", "4"];
$.ajax ({
  type: "POST",
  url: "./pay.php",
  dataType: "json",
  data: {
    "firstName" : firstName,
    "lastName" : lastName,
    "email" : email,
    "price" : price,
    "productIds": productIds,
    "quantities": quantities
  }  
});

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