TYPO3 Core

// Query Params:

$addQueryParams = $conf['addQueryString'] ? $this->getQueryArguments($conf['addQueryString.']) : '';

$addQueryParams .= trim($this->stdWrap($conf['additionalParams'],$conf['additionalParams.']));

$addQueryParams = '';

}

if ($conf['useCacheHash']) {

// Mind the order below! See http://bugs.typo3.org/view.php?id=5117

$params = $GLOBALS['TSFE']->linkVars . $addQueryParams;

$addQueryParams .= '&cHash=' . t3lib_div::generateCHash($params);

}

unset($params);