[英]HTTPPost to JSON in PHP
I am doing an HTTP Post request in Javascript in order to update a JSON file. 我正在Javascript中执行HTTP Post请求以更新JSON文件。
function updateJson(dataNew){
var stringData = JSON.stringify(dataNew);
$.ajax({
type: 'POST',
contentType: 'application/json; charset=utf-8',
url: 'update.php',
data: {stringData},
success : function(d){
alert('done');}
})
}
Then in PHP: 然后在PHP中:
<?php
$a = json_encode(file_get_contents("php://input"));
file_put_contents('newData.json', $a);
?>
I want JSON data in the JSON file however, the json file only includes a single string which is similar to the request payload of the http post. 我想在JSON文件中使用JSON数据,但是,json文件只包含一个字符串,类似于http帖子的请求有效负载。 What am I doing wrong?
我究竟做错了什么?
I would suggest to pass a key/value pair in the data object, and leave the contentType attribute as default (remove it), like: 我建议在数据对象中传递一个键/值对,并将contentType属性保留为默认值(删除它),如:
$.ajax({
...
data: {myjson: stringData},
...
);
Then in PHP you should read the posted data and get that myjson element, without encoding it again, as it is already JSON: 然后在PHP中你应该阅读发布的数据并获取myjson元素,而不再重新编码,因为它已经是JSON:
<?php
$a = $_POST['myjson'];
file_put_contents('newData.json', $a);
?>
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