php - 如何计算两个 Zend_Date 对象之间的差异，以月为单位

Question

我有两个 Zend_Date 类的对象，我想计算它们在整个日历月中的差异。我该怎么做？

<?php
$d1 = new Zend_Date('1 Jan 2008');    
$d2 = new Zend_Date('1 Feb 2010');
$months = $d1->sub($d2)->get(Zend_Date::MONTH);
assert($months == -25); // failure here

提前致谢!

Answer 1

在 Zend_Measure_Time 的帮助下，您可以轻松获得您想要的任何差异:

    $timeNow = new Zend_Date();
    $timeThen = new Zend_Date("2011-05-21T10:30:00");
    $difference = $timeNow->sub($timeThen);

    $measure = new Zend_Measure_Time($difference->toValue(), Zend_Measure_Time::SECOND);
    $measure->convertTo(Zend_Measure_Time::MONTH);

    echo $measure->getValue();

无需复杂的计算!