private function formatG(&$str) {
    if (strstr($str, '%G'))
      $str = str_replace('%G', sprintf('%1d', $this->hour), $str);
  }
private function formatG(&$str) {
    if (strstr($str, '%G'))
      $str = str_replace('%G', sprintf('%1d', $this->hour), $str);
  }
private function formatG ( & $ str ) { if ( strstr ( $ str , '%G' ) ) $ str = str_replace ( '%G' , sprintf ( '%1d' , $ this -> hour ) , $ str ) ; }
24-hour format of an hour without leading zeros
@param type $str
24 - hour format of an hour without leading zeros