test.php

<?php

header('Content-Type: application/json');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE, PATCH');
$method = $_SERVER['REQUEST_METHOD'];

// Parse GET params
$source = $_SERVER['QUERY_STRING'];

parse_str($source, $params);

// Parse POST, PUT, DELETE params
if ($method !== 'GET' && $method !== 'DELETE') {
    $source_input = file_get_contents('php://input');
    parse_str($source_input, $params_input);
    $params = array_merge($params, $params_input);
}

// Read header Access-Token
if (isset($_SERVER['HTTP_ACCESS_TOKEN'])) {
    $params['token'] = $_SERVER['HTTP_ACCESS_TOKEN'];
}

$params['__METHOD__'] = $method;

switch ($method) {
    case 'PUT':
        echo json_encode($params);
        break;
    case 'POST':
        echo json_encode($params);
        break;
    case 'GET':
        echo json_encode($params);
        break;
    default:
        echo json_encode($params);
        break;
}