public function isPisces()
    {
        return ($this->month === self::MONTH_FEBRUARY) && ($this->day >= 20) && ($this->day <= 30) || ($this->month === self::MONTH_MARCH) && ($this->day <= 20);
    }
public function isPisces()
    {
        return ($this->month === self::MONTH_FEBRUARY) && ($this->day >= 20) && ($this->day <= 30) || ($this->month === self::MONTH_MARCH) && ($this->day <= 20);
    }
public function isPisces ( ) { return ( $ this -> month === self :: MONTH_FEBRUARY ) && ( $ this -> day >= 20 ) && ( $ this -> day <= 30 ) || ( $ this -> month === self :: MONTH_MARCH ) && ( $ this -> day <= 20 ) ; }
Checks whether the sign is Pisces

@return boolean
Checks whether the sign is Pisces