Iam拼命尝试使用ajax post方法将json对象传递给php文件,解码并传回一些东西.Php的json_last_error显示4,表示语法错误.
this.send = function()
{
var json = {"name" : "Darth Vader"};
xmlhttp=new XMLHttpRequest();
xmlhttp.open("POST","php/config.php",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send("data="+json);
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("result").innerHTML=xmlhttp.responseText;
};
};
};
<?php
if(isset($_POST["data"]))
{
$data = $_POST["data"];
$res = json_decode($data, true);
echo $data["name"];
}
?>
Run Code Online (Sandbox Code Playgroud) 如何使用JSON.parse reviver方法编辑某个值.我只想编辑声明为lastname的每个键,然后返回新值.
var myObj = new Object();
myObj.firstname = "mike";
myObj.lastname = "smith";
var jsonString = JSON.stringify(myObj);
var jsonObj = JSON.parse(jsonString, dataReviver);
function dataReviver(key, value)
{
if(key == 'lastname')
{
var newLastname = "test";
return newLastname;
}
}
Run Code Online (Sandbox Code Playgroud)