<?php $client = new SoapClient('http://api.inpost.opennet.pl/api.asmx?WSDL', array('trace' => 1)); $parcel='523000019905500000004108'; $params = array( 'token' => array( 'UserName' => 'demo', 'Password' => 'demo' ), 'packageNo' => $parcel ); echo '<pre>'.print_r($params, true).'</pre>'; echo '<pre>'.print_r($client->GetTracking($params), true).'</pre>'; ?>