问Twilio PHP脚本在远程服务器上返回代码500错误，在本地服务器上工作正常吗？

EN

<?php

require '/twilio-php-master/Twilio/autoload.php';

// Use the REST API Client to make requests to the Twilio REST API
use Twilio\Rest\Client;


$AccountSid = "xxx"; // Your Account SID from www.twilio.com/console

$AuthToken = "xxx";   // Your Auth Token from www.twilio.com/console

$client = new Client($AccountSid, $AuthToken);
$number = $_GET['num'];
$country = $_GET['country'];
$receivingPhone = "+2".$number;
$code = rand(100000, 999999);

$client->messages->create(
// the number you'd like to send the message to
$receivingPhone,
array(
    // A Twilio phone number you purchased at twilio.com/console
    'from' => '+12562947081',
    // the body of the text message you'd like to send
    'body' => $code
)
);
     $object = new stdClass();
     $object->num = $code;
     echo json_encode($object);
?>