PHP 时间函数

会员活动 循环获取会员日时间

会员活动 循环获取会员日时间并且返回最近一次会员日时间

if (!function_exists('get_circulate_timestamp')) {
    function get_circulate_timestamp($dates, $date_type, $reference_timestamp)
    {
        $timestamp_array = [];
        $format = '';

        switch ($date_type) {
            case 1:
                $format = 'Y-';
                break;
            case 2:
                $format = 'Y-m-';
                break;
            case 3:
                $week = date("w", $reference_timestamp);
                if ($week == 0) {
                    $week = 7;
                }
                $current_time = strtotime(date("Y-m-d", $reference_timestamp));
                break;
            default:
                return [];
        }

        foreach ($dates as $date_info) {
            switch ($date_type) {
                case 1:
                case 2:
                    $timestamp_array[] = strtotime($format . $date_info);
                    break;
                case 3:
                    $timestamp_array[] = $current_time + ($date_info - $week) * 86400;
                    break;
            }
        }

        return $timestamp_array;
    }
}
if (!function_exists('get_time_array')) {
    function get_time_array($dates, $date_type, $reference_timestamp, $compare_timestamp)
    {
        $timestamp_array = get_circulate_timestamp($dates, $date_type, $reference_timestamp);
        $time_array = ['next_begin' => 0, 'nearest_begin' => 0];

        foreach ($timestamp_array as $timestamp) {
            if ($timestamp > $compare_timestamp) {
                $time_array['next_begin'] = ($time_array['next_begin'] == 0 || $timestamp < $time_array['next_begin']) ? $timestamp : $time_array['next_begin'];
            }

            if ($timestamp <= $compare_timestamp) {
                $time_array['nearest_begin'] = ($time_array['nearest_begin'] == 0 || $timestamp > $time_array['nearest_begin']) ? $timestamp : $time_array['nearest_begin'];
            }
        }

        return $time_array;
    }
}

获取日周月年 时间段时间戳

获取当前 日/周/月/年 起始和结束时间戳
获取前一 日/周/月/年 起始和结束时间戳

  function get_period_timestamp($start_time, $period_type = 'daily')
    {

        switch ($period_type) {

            case 'daily':
                //所选时间的昨天起始
                $before_begin = date('Y-m-d 00:00:00', strtotime('-1 day', $start_time));
                $before_end = date('y-m-d 23:59:59', strtotime($before_begin));
                //所选时间的一天起始
                $begin = strtotime(date('Y-m-d', $start_time));
                $end = strtotime(date('Y-m-d 23:59:59', $start_time));
                break;

            case 'weekly':

                //上周一
                if (date('w') == 1) {
                    $before_begin = date('Y-m-d', strtotime('last monday', $start_time)); //无论今天几号,-1 monday为上一个有效周
                } else {
                    $before_begin = date('Y-m-d', strtotime('-1 week last monday', $start_time)); //无论今天几号,-1 monday为上一个有效周
                }

                //上周日
                $before_end = date('Y-m-d  23:59:59', strtotime('-1 sunday', $start_time)); //上一个有效周日,同样适用于其它星期
                //本周一
//                $begin = date('Y-m-d', ($start_time - ((date('w') == 0 ? 7 : date('w')) - 1) * 24 * 3600)); //w为星期几的数字形式,这里0为周日
                $begin = date('Y-m-d', strtotime('this week Monday', $start_time));
                $end = date('Y-m-d', strtotime('+1week', $begin)) - 1;
                break;

            case 'month':

                //上月一日
                $before_begin = date('Y-m-d', strtotime('-1 month', strtotime(date('Y-m', $start_time) . '-01 00:00:00'))); //本月一日直接strtotime上减一个月
                //上月最后一日
                $before_end = date('Y-m-d  23:59:59', strtotime(date('Y-m', $start_time) . '-01 00:00:00') - 86400); //本月一日减一天即是上月最后一日

                //所选时间的月起始
                $begin = date('Y-m-d', strtotime(date('Y-m', $start_time) . '-01 00:00:00')); //直接以strtotime生成
                $begin = date('Y-m-d', strtotime(date('Y-m-01', $start_time)));
                $end = date('Y-m-d', strtotime('+1month', $begin)) - 1;
                break;

            case 'year':

                //去年一月一日
                $before_begin = date('Y-m-d', strtotime('-1 year', strtotime(date('Y', $start_time) . '-01-01 00:00:00'))); //本月一日直接strtotime上减一个月
                //去年十二月三十一日
                $before_end = date('Y-m-d  23:59:59', strtotime(date('Y', $start_time) . '-01-01 00:00:00') - 1); //本月一日减一天即是上月最后一日


                //所选时间的年起始\

                $begin = date('Y-m-d', strtotime(date('Y-01-01', $start_time)));
                $end = date('Y-m-d', strtotime('+1year', $begin)) - 1;

                break;

            default:
                return build_result('类型错误 ：daily,weekly,month,year');
        }

        $result = [
            'before_begin' => $before_begin,
            'before_end' => $before_end,
            'begin' => $begin,
            'end' => $end
        ];
        return build_result('查询成功', 0, $result);
    }

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