Imprimir XML externo - Wikipedia API

[arros]

tu prueba esto

Código PHP:

$url = 'http://en.wikipedia.org/w/api.php?action=query&list=search&format=xml&srsearch=messi';
    //$userAgent = $_SERVER['HTTP_USER_AGENT'];
    $header[] = "Accept: application/xml";
      $header[] = "Accept-Encoding: gzip";
      $ch = curl_init();
      curl_setopt( $ch, CURLOPT_HTTPHEADER, $header );
      curl_setopt($ch,CURLOPT_ENCODING , "gzip");
      //curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
      curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
      curl_setopt( $ch, CURLOPT_URL, $url );
      curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
      $response = curl_exec($ch);
      //$response = curl_exec($ch);
      print_r($response);
 

me da la respuesta esto: Scripts should use an informative User-Agent string with contact information, or they may be IP-blocked without notice.
mira la documenetacion de api