如何检查日期是否在给定范围内？

Question

如何检查日期是否在给定范围内？如果您有，$start_date并且$end_date，如何检查用户给出的日期是否在该范围内？例如$start_date = '2009-06-17';$end_date = '2009-09-05';$date_from_user = '2009-08-28'; 目前日期是字符串，是否有助于将它们转换为时间戳整数？

Answer 1

如果你有PHP 5.3+，请使用DateTime类。易于使用，功能更强大。

DateTime内部支持时区，其他解决方案由您决定。

<?php    

/**

 * @param DateTime $date Date that is to be checked if it falls between $startDate and $endDate

 * @param DateTime $startDate Date should be after this date to return true

 * @param DateTime $endDate Date should be before this date to return true

 * return bool

 */

function isDateBetweenDates(DateTime $date, DateTime $startDate, DateTime $endDate) {

    return $date > $startDate && $date < $endDate;

}

$fromUser = new DateTime("2012-03-01");

$startDate = new DateTime("2012-02-01 00:00:00");

$endDate = new DateTime("2012-04-30 23:59:59");

echo isDateBetweenDates($fromUser, $startDate, $endDate);