<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);

header('Content-Type: application/json');

$raw = file_get_contents("php://input");
echo json_encode([
    "raw_input" => $raw,
    "json_decoded" => json_decode($raw, true),
    "json_error" => json_last_error_msg(),
    "request_method" => $_SERVER['REQUEST_METHOD'],
    "content_type" => $_SERVER['CONTENT_TYPE'] ?? 'not set',
]);
?>