我正在尝试使用 axios formdata 将 js 数组发送到 php，但它一直失败

Question

我正在尝试使用 axios post js 键和值数组到 php，我真的迷路了谢谢你的帮助

这是我要发送的数组：

 let arr = [];
    arr["adID"] = uuidv4();
    arr["price"] = price;
    arr["city"] = city;
    arr["street"] = street;
    arr["rooms"] = rooms;
    arr["building_number"] = building_number;
    arr["entry"] = entry;
    arr["apartment"] = apartment;
    arr["user_id"] = 1;
    sendDataFromJsToPhp("insertAd", arr);

这是 axios 部分：

 sendDataFromJsToPhp(type, parametersArray) {
this.formData.append("data", "insertAd"); //type to create new ad is insertAd
this.formData.append(
  "parameters",parametersArray); //type to create new ad is insertAd
axios({
  method: "post",
  url: this.url,
  data: this.formData,
  config: { headers: { "Content-Type": "multipart/form-data" } },
}).then(
  (response) => {
    console.log(response.data);
    this.resultFromServer = response.data;
  },
  (error) => {
    console.log(error);
  }
);
//this is a work around that will get us array of keys and one of values and will merge them
//to get aray that represent the data we got
return this.resultFromServer;

}

这里是 php:


header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Headers: *");
header("Access-Control-Allow-Methods: *");
header('Content-Type: application/json');


$DATA_RAW = file_get_contents("php://input");


$DATA_OBJ = json_decode($DATA_RAW);
$error = "";
 if(isset($_POST)&&isset($_POST['data']))
$dataType = $_POST["data"];
if(isset($_POST)&&isset($_POST['parameters']))
$parameters=$_POST['parameters'];
print_r($parameters);

当我处理 $parameters 时出现的错误我得到这些错误： 1)警告: 中未初始化的字符串偏移量 0 2)b>Fatal error: Uncaught TypeError: Cannot access offset of type string on string in

中的字符串

非常感谢

Answer 1

如果您的数组使用字符串键值而不是 int，stringify 会忽略该值。

因此你必须创建一个对象而不是数组。

即；

let arr = {};
    arr.adID = uuidv4();
    arr.price = price;
    arr.city = city;
    arr.street = street;
    arr.rooms = rooms;
    arr.building_number = building_number;
    arr.entry = entry;
    arr.apartment = apartment;
    arr.user_id = 1;
    sendDataFromJsToPhp("insertAd", arr);

并在表格中追加数据；

this.formData.append(
  "parameters", JSON.stringify(parametersArray)); //type to create new ad is insertAd

我正在尝试使用 axios formdata 将 js 数组发送到 php，但它一直失败

im trying to send a js array to php using axios formdata but it keep on failing i get [objext object] at console and if im trying to use stringify ""

javascript

php

reactjs

axios