public function getQueryString()
    {
        $requestUri = $this->getRequestUri();

        if (false !== $qPos = mb_strpos($requestUri, '?')) {
            // has query string
            return mb_substr($requestUri, $qPos + 1);
        }

        return '';
    }
public function getQueryString()
    {
        $requestUri = $this->getRequestUri();

        if (false !== $qPos = mb_strpos($requestUri, '?')) {
            // has query string
            return mb_substr($requestUri, $qPos + 1);
        }

        return '';
    }
public function getQueryString ( ) { $ requestUri = $ this -> getRequestUri ( ) ; if ( false !== $ qPos = mb_strpos ( $ requestUri , '?' ) ) { // has query string return mb_substr ( $ requestUri , $ qPos + 1 ) ; } return '' ; }
The query string.

@return string the query string, or empty string if no query string
is available
The query string .