前一天时间范围与本月剩余天数：PHP与前端开发实例-优快云博客

本文介绍了如何使用PHP获取前一天的开始和结束时间，以及计算本月剩余天数的方法，同时展示了与前端日期处理相关的函数。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1、获取前一天的开始时间和结束时间


$startTime=date("Y-m-d",strtotime("-1 day"))." 00:00:00";

$endTime=date("Y-m-d",strtotime("-1 day"))." 23:59:59";

2、获取本月剩余天数

public function lessDay()
    {
        $month_big = array('January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December');
        //现在的月份
        $date_month_old = (int)date('m',time());
        //下个月的月份
        $date_month_new = $date_month_old + 1;
        //下个月1号的时间戳
        $date_time_new = strtotime('1 '.$month_big[$date_month_new-1].' '.date('Y',time()));
        //今天的时间戳
        $date_time_old = strtotime(date('d',time()).' '.$month_big[$date_month_old-1].' '.date('Y',time()));
        //距下月剩余时间
        $time_new = ($date_time_new - $date_time_old)/24/60/60-1;
        return $time_new;
}

3、获取下个月的当前时间

public function nextMonth($date=NULL)
    {
        if ($date) {
            $timestamp = strtotime($date);
        } else {
            $timestamp = time();
        }
        $arr = getdate($timestamp);
        $time = date('H:i:s', $timestamp);
        $day = $arr['mday'];
        $year = $arr['year'];
        if ($arr['mon'] == 12) {
            $year = $arr['year'] + 1;
            $month = $arr['mon'] - 11;
            if($month<10){
                $month = '0'.$month;
            }
            $firstDay = $year . '-' . $month . '-' . date('d', $timestamp) . ' ' . $time;
        } else {
            $month = $arr['mon']+1;
            $month_maxday = date('Y-m-d', strtotime(date('Y-m-01', strtotime($year . '-' . $month . '-01')) . ' +1 month -1 day')); //某月的最后一天
            $month_maxday = date("d ",strtotime($month_maxday));
            if($arr['mday']>$month_maxday){
                $day =  $month_maxday;
            }
            $firstDay = date("Y-m-d", mktime(0, 0, 0, $month, $day, $year)). ' ' . $time;
        }
        return $firstDay;
}
nextMonth(2020-09-24);    //返回 2020-10-24 00:00:00