简单的XML命名空间 - 在表php中显示数据

Question

在本地服务器上api以xml格式向我发送信息。使用Curl Simple XML，我设法将它们放在变量中并以原始格式回显。但我想用php回显表中的数据。

private $fp;

private function connect(){ 
    $apnsHost      = 'gateway.push.apple.com'; 
    $apnsCert      = 'certs/cert.pem';
    $apnsPort      = 2195;
    $pass          = "blah";
    $streamContext = stream_context_create();

    stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert);
    stream_context_set_option($streamContext, 'ssl', 'passphrase', $pass);
    $this->fp = stream_socket_client('ssl://' . $apnsHost . ':' . $apnsPort, $err, $errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $streamContext);
    if (!$this->fp) return("Failed to connect: $err $errstr<br>");
    echo 'Connected to APNS<hr />'; 
  }

private function send(){
  $this->connect();
  foreach($pushes as $push) {
    $payload['aps'] = array('alert' => $push->text, 'badge' => 0, 'sound' => 'default');
    $payload2 = json_encode($payload);
    $msg = chr(0) . pack('n', 32) . pack('H*', $push->token) . pack('n', strlen($payload2)) . $payload2;
    try {
      $result = fwrite($this->fp, $msg, strlen($msg));
    } 
    catch (\Exception $e) {
      fclose($this->fp);
      echo('Error sending payload: ' . $e->getMessage());
      sleep(5);
      $this->connect();
    }
  }
}

在echo $ data之后，这是我以原始格式获得的。

<?php
            $curl = curl_init();
            curl_setopt_array($curl, Array(
                CURLOPT_PORT => "8080",
                CURLOPT_URL => "http://10.10.10.91:8080/StanjeKupca/services/Service.ServiceHttpSoap11Endpoint/getPartner?sifPar=1000001",
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING => "utf8",
                CURLOPT_MAXREDIRS => 10,
                CURLOPT_TIMEOUT => 30,
                CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST => "GET",
                CURLOPT_HTTPHEADER => array(
                "cache-control: no-cache",
                )
            ));
            $data = curl_exec($curl);
            curl_close($curl);
            $xml = simplexml_load_string($data, 'SimpleXMLElement', LIBXML_NOCDATA);
            // die('<pre>' . print_r($xml], TRUE) . '</pre>');

            foreach ($xml->ns:return as $item) {
                echo $item->ax21:kolicina;
                echo $item->ax21:nazPar;
                echo $item->ax21:sifPar;
            } 

        ?>

我不知道处理命名空间!!