Question

我有以下代码行

$day1 = new Zend_Date('2010-03-01', 'YYYY-mm-dd');
$day2 = new Zend_Date('2010-03-05', 'YYYY-mm-dd');
$dateDiff = $day2->getDate()->get(Zend_Date::TIMESTAMP) - $day1->getDate()->get(Zend_Date::TIMESTAMP);
$days = floor((($dateDiff / 60) / 60) / 24);
return  $days;

这将返回4

但是如果给了

$day1 = new Zend_Date('2010-02-28', 'YYYY-mm-dd');
$day2 = new Zend_Date('2010-03-01', 'YYYY-mm-dd');
$dateDiff = $day2->getDate()->get(Zend_Date::TIMESTAMP) - $day1->getDate()->get(Zend_Date::TIMESTAMP);
$days = floor((($dateDiff / 60) / 60) / 24);
return  $days;

它将返回-27 ..我将如何得到正确答案

Answer 1

$firstDay = new Zend_Date('2010-02-28', 'YYYY-MM-dd');
$lastDay = new Zend_Date('2010-03-01', 'YYYY-MM-dd');
$diff = $lastDay->sub($firstDay)->toValue();
$days = ceil($diff/60/60/24) +1;

返回$ days;

这给出了正确的答案

Answer 2

我相信问题出现在你的部分字符串中。请改为 YYYY-MM-dd 。

$day1 = new Zend_Date('2010-02-28', 'YYYY-MM-dd');
$day2 = new Zend_Date('2010-03-01', 'YYYY-MM-dd');
echo $day2->sub($day1)->toString(Zend_Date::DAY);

Answer 3

    $cerimonia = new Zend_Date('your date here');
    $days = $cerimonia->sub(Zend_Date::now());
    $days = round($days/86400)+1;

Answer 4

我为自己的便利功能扩展了Zend_Date。我的解决方案类似于Nisanth，有一些关键的区别：

计算比较前两天的开始
使用round()代替ceil()
不要将1添加到结果

示例代码：

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);
    }
}

Answer 5

如果$ date是Zend_Date对象，您可以使用以下内容：

if ($date->isEarlier(Zend_Date::now()->subDay(2)){
    [...]
}

或Zend_Date对象的其他subXxx函数。

Answer 6

注册日期（之后）与购买日期之间（之前）的天数

// $datePurchase instanceof Zend_Date
// $dateRegistration instanceof Zend_Date
if($datePurchase && $dateRegistration) {
   $diff = $dateRegistration->sub($datePurchase)->toValue();
   $days = ceil($diff/60/60/24)+1;
 }

Zend Date - 日差异

6 个答案: