如何从file_get_contents（php：// input）中检索信息？

I am trying to fix a callbackurl and in the old system I could simply use a $_POST['order_id'] when trying to retrieve the data. Unfortunately that no longer seems to be possible.

The new system uses this line of code:

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

According to the technical data sheet the order_id is now simply called id, but how do I use $request_body to retrieve it? Something like $request_body['id'] ?

What kind of data you send to server? Probably the form is application/x-www-form-urlencoded encoded, so you can use parse_str function to parse query string.

php://input contains the raw data after request HTTP headers.

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

$data = array();

parse_str($request_body, $data);

var_dump($data);

If you send JSON for example, you can use json_decode.