code: private function parseStr($string)
      {
          $params = array();
                  
          $pairs = explode('&', $string);
  
          foreach ($pairs as $pair) {
              if (! $pair) {
                  continue;
              }
  
              $var = explode('=', $pair, 2);
              $val = ( isset( $var[1] ) ? $var[1] : '' );
  
              if (isset($params[$var[0]])) {
                  if (is_array($params[$var[0]])) {
                      $params[$var[0]][] = $val;
                  } else {
                      $params[$var[0]] = array($params[$var[0]], $val);
                  }
              } else {
                  $params[$var[0]] = $val;
              }
          }
  
          return $params;
      }
docs: Replacement for PHP's parse_string which does not deal with spaces or dots in key names
  
  @param string $string URL query string
  @return array key value pairs