function GetAccountTotalCost(AdWordsUser $user, $dateRange) {
$options = array('version' => ADWORDS_VERSION);
$options['skipReportHeader'] = true;
$options['skipColumnHeader'] = true;
$options['skipReportSummary'] = false;
$reportQuery = 'SELECT AccountCurrencyCode, Cost '
. 'FROM ACCOUNT_PERFORMANCE_REPORT '
. 'DURING ' . $dateRange;
// Download report.
$reportUtils = new ReportUtils();
$reportString = $reportUtils->DownloadReportWithAwql($reportQuery, null, $user, 'CSV', $options);
$reportArray = array_filter(explode("\n", $reportString));
$reportSummary = explode(",",end($reportArray));
$totalCost = $reportSummary[1] / 1000000;
print('Date '.$dateRange.' Cost='.$totalCost."\n");
}