如何制作一個異步/等待獲取帖子？ 得到500內部服務器錯誤

Question

我已經成功地使用thisWorks（）函數向我的php api發送了fetch post，但是我嘗試將async / await post（）函數與fetch一起使用，但是在嘗試執行此操作時，我不斷返回500內部服務器錯誤響應我不確定如何調試，因為異步函數中的代碼與thisWorks（）中的代碼基本相同。

這是兩個功能-

//I can make a succesful post to my api with this function and it returns a 200 ok response from the server

function thisWorks(title, message, author, id) {
    fetch("http://menu.com/menu/api/post/create.php", {
      method: "POST",
      headers: new Headers(),

      body: JSON.stringify({
        'title' : title,
        'body' : message,
        'author' : author,
        'category_id' : id
      })
    })
    .then( (response) => {
       console.log(response);
    });
}


//this gives a 500 internal server error and  TypeError: "NetworkError when attempting to fetch resource."

const post = async (title, message, author, id) => {

    const location = "http://menu.com/menu/api/post/create.php";

    const settings = {
        method: 'POST',
        headers: new Headers({
            'Accept' : 'application/json',
            'Content-Type': 'application/json'
        }),
        body: JSON.stringify({
            'title' : title,
            'body' : message,
            'author' : author,
            'category_id' : id
        })
    };

    try {
        const response = await fetch(location, settings);
        const json = await response.json();
        console.log(json);
        return json;
    } catch (error) {
        console.log(error);
        return error;
    }
}

在此Works中出現相同的500個內部服務器錯誤之前，我的apache服務器中的errorLog是我現在在異步發布函數中遇到的相同錯誤-

[Sun Feb 17 18:21:11.122109 2019] [php7:warn] [pid 890] [client 127.0.0.1:37548] PHP Warning: Header may not contain more than a single header, new line detected in /home/orpheus/Practice_dev/menu/api/post/create.php on line 7

[Sun Feb 17 18:21:11.122452 2019] [php7:notice] [pid 890] [client 127.0.0.1:37548] PHP Notice: Trying to get property 'title' of non-object in /home/orpheus/Practice_dev/menu/api/post/create.php on line 22

[Sun Feb 17 18:21:11.122471 2019] [php7:notice] [pid 890] [client 127.0.0.1:37548] PHP Notice: Trying to get property 'body' of non-object in /home/orpheus/Practice_dev/menu/api/post/create.php on line 23

[Sun Feb 17 18:21:11.122477 2019] [php7:notice] [pid 890] [client 127.0.0.1:37548] PHP Notice: Trying to get property 'author' of non-object in /home/orpheus/Practice_dev/menu/api/post/create.php on line 24

[Sun Feb 17 18:21:11.122482 2019] [php7:notice] [pid 890] [client 127.0.0.1:37548] PHP Notice: Trying to get property 'category_id' of non-object in /home/orpheus/Practice_dev/menu/api/post/create.php on line 25

[Sun Feb 17 18:21:11.122743 2019] [php7:error] [pid 890] [client 127.0.0.1:37548] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 1366 Incorrect integer value: '' for column 'category_id' at row 1 in /home/orpheu$

這個問題不是我的php代碼中的問題，而是與我的提取請求有關，我通過向請求中添加新的Headers（）來解決了該問題，並且它可以正常工作。 因此，我確定問題在於我如何調用異步post（）函數，但我不知道要更改什么。

編輯-

這些是我在create.php中的頭文件。 他們接受內容類型-application / json，所以我不確定為什么不能在沒有錯誤的情況下將其添加到我的ajax請求中

header('Access-Control-Allow-Origin: *');
  header('Content-Type: application/json');
  header('Access-Control-Allow-Methods: POST, OPTIONS');
  header("Access-Control-Max-Age: 3600");
  header('Access-Control-Allow-Headers: Access-Control-Allow-Headers,Content-Type,Access-Control-Allow-Methods, 
  Authorization, X-Requested-With, Content-Type, Authorization');

Answer 1

通過從新標題中刪除“ Accept”：“ application / json”，“ Content-Type”：“ application / json”來解決此問題。 這就是我在php標頭中接受的內容，但是以某種方式在獲取帖子中使用時會導致500內部服務器錯誤。