Zend Date — day difference

Question

I have the below line of codes

$day1 = new Zend_Date(\'2010-03-01\', \'YYYY-mm-dd\');
$day2 = new Zend_Date(\'2010-03-05\', \'YYYY-mm-dd\');
$dateDiff = $da         


        

Answer 1

I've extended Zend_Date for my own convenience functions. My solution is similar to Nisanth's, with some key differences:

1. calculate the beginning of the day for both days before comparing
2. use round() instead of ceil()
3. do not add 1 to the result

Example code:

class My_Date extends Zend_Date
{
    public static function now($locale = null)
    {
        return new My_Date(time(), self::TIMESTAMP, $locale);
    }

    /**
     * set to the first second of current day
     */
    public function setDayStart()
    {
        return $this->setHour(0)->setMinute(0)->setSecond(0);
    }

    /**
     * get the first second of current day
     */
    public function getDayStart()
    {
        $clone = clone $this;
        return $clone->setDayStart();
    }

    /**
     * get count of days between dates, ignores time values
     */
    public function getDaysBetween($date)
    {
        // 86400 seconds/day = 24 hours/day * 60 minutes/hour * 60 seconds/minute
        // rounding takes care of time changes
        return round($date->getDayStart()->sub(
            $this->getDayStart()
        )->toValue() / 86400);
    }
}