POST method in Google Apps Script - ajax

Question

May I ask what is wrong when I use the POST method in the Apps script?
function myFunctionpost() {
var url = "mydomain.com/2spreadsheet.php";
var data = { "testpost" :　" Text text text" };
var payload = JSON.stringify(data);
var headers = { "Accept":"application/json",
"contentType" : "application/json",
"Authorization":"Basic _authcode_"
};
var options = { "method":"POST",
"contentType" : "application/json",
"headers": headers,
"payload" : payload
};
var response = UrlFetchApp.fetch(url ,options);
Logger.log(response );
}
The myFunctionpost() in the Apps script is about posting the Json data : "testpost" to the url.
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
echo "Server is requested";
if(isset($_POST["testpost"])){
echo "Post something here";
echo $_POST["testpost"];
}
}
And the code in (2spreadsheet.php) showing that I want to post the data I posted, but it does not work.
The Loggin Output:
[15-07-12 14:06:00:205 HKT]
Server is requested
Can anyone tell me what is the problem?

Answer 1

You don't have to specify the content type and can leave out JSON.Stringify. Your object data is already a JavaScript object. It will be interpreted as an HTML form.
var url = "mydomain.com/2spreadsheet.php";
var data = { "testpost" :　" Text text text" };
var options = { "method":"POST",
"payload" : data
};
var response = UrlFetchApp.fetch(url ,options);
Logger.log(response );
The content type will default to application/x-www-form-urlencoded. You can check this with $_SERVER["CONTENT_TYPE"].