i use nusoap to check a vat id via a webservice. here is a part of my php source code:
' wrong vat id number
$code = "NL";
$id = "009442270B40";
$param = array('countryCode' => $code, 'vatNumber' => $id );
$client = new soapclient_nusoap('http://ec.europa.eu/taxation_customs/vies/api/checkVatPort');
$response = $client->call('checkVat', $param);
after this call i save the result in my database and then I do a header location to an other file, but this does not work:
Warning: Cannot modify header information - headers already sent in
The line: $response = $client->call('checkVat', $param, "", "", true); sends some header, that my header location does not work.
why is that? how can i prevent this?
Okay, I decided not to use nusoap and choosed a better way.