<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

session_start();

require('classes/cvent.class.php');

$account = 'PARTCA001';
$username = 'PARTCA001Api';
$password = 'S8COcsZJSwt';
$prod = 'https://api.cvent.com/soap/V200611.ASMX?wsdl';

// login to API
$client = new CventClient();
$client->Login($account,$username,$password);

// get Updated Events Ids
// $StartDate - is the date of last cron run, for testing return data for last 2 years
$StartDate = date('Y-m-d', strtotime('-2 year')).'T00:00:00';
$newEvents = $client->GetUpdated($StartDate);
if(!empty($newEvents->GetUpdatedResult))
{
    // get all Event Ids's data
    $eventIds = $newEvents->GetUpdatedResult;
    $eventDatas = $client->GetEventById($eventIds->Id);
    if(!empty($eventDatas->RetrieveResult->CvObject))
    {
        echo "<pre>";
        var_dump($eventDatas->RetrieveResult->CvObject);
        echo "</pre>";
    }
}
else
{
    // nothing to update
}
?>