Отправка XML формы с использованием POST

//header('Content-Type: text/xml; utf-8; charset=UTF-8'); 
error_reporting(E_ALL);
 
 
 
$xml =  '<?xml version="1.0" encoding="UTF-8" ?>
<order xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sanpid-t.7demo.org.ua/ecom.xsd">
    <login>ххх</login>
    <pwd>ххх</pwd>
    <orderid>12</orderid>
    <invoiceid>1211</invoiceid>
    <personinfo>
      <surname>Петров</surname>
      <first_name>Іван</first_name>
      <patronymic_name>Олексанрович</patronymic_name>
      <tin>2078600719</tin>
      <birthday>1956-11-28</birthday>
      <downpayment>256.00</downpayment>
      <email>infoline@gmail.com</email>
      <mobile_phone>0637011733</mobile_phone>
    </personinfo>
    <goods>
        <good>
        <id>1234</id>
        <classificationid>2</classificationid>
        <classificationname>фото видео техника</classificationname>
        <name>Samsung 45PF</name>
        <price>3089.51</price>
        <amount>1</amount>
    </good>
    <good>
        <id>12345</id>
        <classificationid>5</classificationid>
        <classificationname>фото видео техника</classificationname>
        <name>Samsung 45PF</name>
        <price>1089.51</price>
        <amount>1</amount>
    </good>
    </goods>
</order>';
 
 
$headers = array
(
    'Accept: text/xml,application/xhtml+xml,application/xml;q=0.9,*;q=0.8',
    'Accept-Language: ru,en-us;q=0.7,en;q=0.3',
    'Accept-Encoding: deflate',
    'Accept-Charset: utf-8;q=0.7,*;q=0.7',
    'Content-type: text/xml;charset=UTF-8'
); 
 
$ch = curl_init("https://ratanet-backup.ukrsibbank.com/coliseum/jsp/ecommerce");  
curl_setopt($ch,CURLOPT_POST,1); //Использовать метод POST 
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // 
curl_setopt($ch, CURLOPT_HEADER,0); 
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,1);
$res = curl_exec($ch); 
print_r($res);
 $info=curl_getinfo($ch);  
curl_close($ch);