public function isHoliday($iso, $date = 'now', $state = null)
    {
        return ($this->getHoliday($iso, $date, $state) !== null);
    }
public function isHoliday($iso, $date = 'now', $state = null)
    {
        return ($this->getHoliday($iso, $date, $state) !== null);
    }
public function isHoliday ( $ iso , $ date = 'now' , $ state = null ) { return ( $ this -> getHoliday ( $ iso , $ date , $ state ) !== null ) ; }
Checks wether a given date is a holiday

This method can be used to check whether a specific date is a holiday
in a specified country and state

@param string           $iso
@param \DateTime|string $date
@param string           $state

@return bool
Checks wether a given date is a holiday