推送通知（iPhone）给“111连接被拒绝”(Push notifications (iPhone

当我尝试发送推送通知我得到这个错误：“连接被拒绝”，但我不知道在同一个目录...为什么我上传我的APNS-dev.pem以及在根目录但将不能工作。

<?php
$payload['aps'] = array('alert' => 'This is the alert text', 'badge' => 1, 'sound' => 'default');
$payload = json_encode($payload);
$apnsHost = 'gateway.sandbox.push.apple.com';
$apnsPort = 2195;
$apnsCert = 'apns-dev.pem';
$apnsPass = 'secret';

$streamContext = stream_context_create();
stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert);
stream_context_set_option($streamContext, 'ssl', 'passphrase', $apnsPass);

$apns = stream_socket_client('ssl://' . $apnsHost . ':' . $apnsPort, $error, $errorString, 60, STREAM_CLIENT_CONNECT, $streamContext);

if (!$apns) {
    echo "Error: $errorString ($error)";
}

// Do this for each
$deviceToken = '00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000';
$apnsMessage = chr(0) . chr(0) . chr(32) . pack('H*', str_replace(' ', '', $deviceToken)) . chr(0) . chr(strlen($payload)) . $payload;
fwrite($apns, $apnsMessage);
// End do

socket_close($apns);
fclose($apns);
?>

有谁知道我做错了吗？当我删除了密码，不要把它它也不管用...