original_string: public function getQueryString()
      {
          $requestUri = $this->getRequestUri();
  
          if (false !== $qPos = mb_strpos($requestUri, '?')) {
              // has query string
              return mb_substr($requestUri, $qPos + 1);
          }
  
          return '';
      }
code: public function getQueryString()
      {
          $requestUri = $this->getRequestUri();
  
          if (false !== $qPos = mb_strpos($requestUri, '?')) {
              // has query string
              return mb_substr($requestUri, $qPos + 1);
          }
  
          return '';
      }
code_tokens: public function getQueryString ( ) { $ requestUri = $ this -> getRequestUri ( ) ; if ( false !== $ qPos = mb_strpos ( $ requestUri , '?' ) ) { // has query string return mb_substr ( $ requestUri , $ qPos + 1 ) ; } return '' ; }
docstring: The query string.
  
  @return string the query string, or empty string if no query string
  is available
docstring_tokens: The query string .