test.php

<?php

error_reporting(E_ALL);
ini_set('display_errors', '1');

require_once('./PHP_Json_RPC_2.0/vendor/autoload.php');


use Timmachine\PhpJsonRpc\Router;
use Timmachine\PhpJsonRpc\Listener;


class User
{
    public function userCheck($hello, $test, $halp = "example optional parameter")
    {


        return ["hello"=>$hello, $test * 8, $halp];
    }
}


$router = new Router();

$router->add('user.check', 'User@userCheck');


$customRequirements = [
    [
        'key' => 'event',
        'value' => null,
        'errorMessage' => 'missing event',
        'errorCode' => -34500
    ]
];

$listener = new Listener($router, "2.0", $customRequirements);

$listener->validateJson('{"jsonrpc": "2.0", "method": "user.check", "params":{"hello":45,"test":67}, "id": 1, "event": "test"}');
//$listener->validateJson('{"jsonrpc": "2.0", "method": "user_check", "params":[1,9], "id": 1}');

//$listener->validateJson('{"jsonrpc": "2.0", "method": "user_check", "params":{"data":{"test":45,"test2":67}, "derp":{"test":45,"test2":67}}, "id": 1}');


try {
    $listener->isValidJson();
    $listener->processRequest();
    $response = $listener->getResponse();
} catch (\Timmachine\PhpJsonRpc\RpcExceptions $e) {
    echo $e->getMessage();
    $response = $listener->getResponse();
}


print_r($response); // returns {"jsonrpc":"2.0","result":{"hello":45,"0":536,"1":"example optional parameter"},"id":1}