(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::getTime — Get time currently represented by the object
面向对象风格
过程化风格
Returns the time associated with this object, expressed as the number of milliseconds since the epoch.
calThe IntlCalendar resource.
A float representing the number of milliseconds elapsed since the reference time (1 Jan 1970 00:00:00 UTC).
Example #1 IntlCalendar::getTime()
<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'en_US');
$cal = new IntlGregorianCalendar(2013, 4 /* May */, 1, 0, 0, 0);
$time = $cal->getTime();
var_dump($time, $time / 1000 == strtotime('2013-05-01 00:00:00')); //true
以上例程会输出：
float(1367362800000) bool(true)