TYPO3: Create Link to Current page

$params = array (
    'sto[action]' => 'redo',
    'eprs[r]' => 11856
);

function createLinkToCurrentPage($params) {
    $additionalParams = '';
    foreach($params as $field => $value) {
        $additionalParams .= '&'.$field.'='.$value;
    }

    $typolinkConf = array(
        'parameter' => $GLOBALS['TSFE']->id,
        'additionalParams' => $additionalParams
    );
    return $this->cObj->typoLink_url($typolinkConf);
}