从PHP发送推送通知时警告pack(）

我正在从PHP向iPhone发送推送通知。

连接已成功建立，但它会给我类似的错误：

Connection Established
Warning: pack() [function.pack]: Type i: too few arguments in C:'xampp'htdocs'BiiMe'checkAvailableProduct.php on line 68
M{"aps":{"alert":"BiiMe finds product for you","badge":"3","sound":"default"}} M{"aps":{"alert":"BiiMe finds product for you","badge":"3","sound":"default"}}
Warning: socket_close(): supplied resource is not a valid Socket resource in C:'xampp'htdocs'BiiMe'checkAvailableProduct.php on line 79 

我的代码是：

function pushToIphone($deviceToken, $badge){
    ini_set('display_errors','on');
    error_reporting(E_ALL);

//  $apnsHost = 'gateway.sandbox.push.apple.com';
$apnsHost = 'gateway.push.apple.com';
    $apnsPort = 2195;
    $pem_path = dirname(__FILE__);

    $pem_path = $pem_path .''cert';
    $apnsCert = $pem_path.''apns_cer.pem';
    echo $apnsCert."<br/>"; 
    $streamContext = stream_context_create();
    stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert);
    $apns = stream_socket_client('ssl://' . $apnsHost . ':' . $apnsPort, $error, $errorString, 2, STREAM_CLIENT_CONNECT, $streamContext);
    if($apns) {
        echo "Connection Established<br/>";
        $payload = array();
        $payload['aps'] = array('alert' => 'BiiMe finds product for you', 'badge' => $badge, 'sound' => 'default');
        //$payload['server'] = array('serverId' => $serverId, 'name' => $serverName);
        $payload = json_encode($payload);
        apnsMessage = chr(0) . chr(0) . chr(32) . pack('H*', str_replace(' ', '', $deviceToken)) . chr(0) . chr(strlen($payload)) . $payload;
        //$apnsMessage = chr(0) . chr(0) . chr(32) . pack('nic*', str_replace(' ', '', $deviceToken)) . chr(0) . chr(strlen($payload)) . $payload;
        echo $apnsMessage;
        print_r($apnsMessage);

        fwrite($apns, $apnsMessage);    
    } else {
        echo "Connection fail<br/>";
    }
//socket_close($apns);
    socket_close($apns);
    fclose($apns);
}