Web-API:Time Tracking

$out = $cerb5->get($base_url . 'timetracking/1.xml');

$postfields = array(
	array('criteria[]','org_id'),
	array('oper[]','='),
	array('value[]','1'),
//	array('criteria[]','subject'),
//	array('oper[]','like'),
//	array('value[]','how long*'),
	array('sortBy','id'),
	array('sortAsc','1'),
	array('page','1'),
);
$out = $cerb5->post($base_url . 'timetracking/search.xml', $postfields);