static public function isToday($value)
    {
        $time = DataHelper::toUnixtime($value);
        $todayRange = static::todayRange();
        
        if ($time >= $todayRange[0] && $time <= $todayRange[1]) {
            return true;
        }
        return false;
    }
static public function isToday($value)
    {
        $time = DataHelper::toUnixtime($value);
        $todayRange = static::todayRange();
        
        if ($time >= $todayRange[0] && $time <= $todayRange[1]) {
            return true;
        }
        return false;
    }
static public function isToday ( $ value ) { $ time = DataHelper :: toUnixtime ( $ value ) ; $ todayRange = static :: todayRange ( ) ; if ( $ time >= $ todayRange [ 0 ] && $ time <= $ todayRange [ 1 ] ) { return true ; } return false ; }
value is today
@param  mixed $value
@return boolean
value is today