<?php
/**
 * api.domain.de — REST API
 */
header('Content-Type: application/json');

$method = $_SERVER['REQUEST_METHOD'];

switch ($method) {
    case 'GET':
        echo json_encode(['status' => 'ok', 'message' => 'API läuft']);
        break;
    case 'POST':
        $input = json_decode(file_get_contents('php://input'), true);
        echo json_encode(['status' => 'received', 'data' => $input]);
        break;
    default:
        http_response_code(405);
        echo json_encode(['error' => 'Method not allowed']);
}