XML : Error HTTP Status 415 - Unsupported Media Type when send XML from php to RESTful

I have RESTful web service deploy on jboss EAP. In other, I create php file for make a XML and I want send(POST) them to RESTful.

The RESTful http://192.168.0.191:8080/UserManagement/rest/UserService/users/ webservice show like this :

  <sample>    <user>      <id>1</id>      <name>Moyes Chuck</name>      <profession>Teacher</profession>    </user>    <user>      <id>2</id>      <name>Van Gaal</name>      <profession>Driver</profession>    </user>  </sample>    

And create postxml.php :

  $xml = new SimpleXMLElement('<sample/>');      $track = $xml->addChild('user');      $track->addChild('id', "3");      $track->addChild('name', "Brody Ben");      $track->addChild('profession', "Manager");    

in same file(postxml.php), this code I wrote to post to RESTful:

  $service_url1 = 'http://192.168.0.191:8080/UserManagement/rest/UserService/users/';  $curl1 = curl_init($service_url1);  curl_setopt($curl1, CURLOPT_RETURNTRANSFER, true);  $arr=array("key"=>$xml);  curl_setopt($curl1, CURLOPT_POST, 1);  curl_setopt($curl1, CURLOPT_POSTFIELDS,$arr);  echo $curl1_response = curl_exec($curl1);  curl_close($curl1);    

But when I run postxml.php on browser http://localhost:82/test3/postxml.php, it show an error :

HTTP Status 415 - Unsupported Media Type.
JBWEB000069: description JBWEB000135: The server refused this request because the request entity is in a format not supported by the requested resource for the requested method.