获取一个月内的周数和相应的天数

Question

我很确定我过于复杂,但我不知道如何以另一种方式做到这一点.

我想创建一个数组,其中包含一个月中一周的数字作为键,以及本周的日期作为值.

我正在使用此功能来获取一周的所有日子:

public function getDaysOfWeek($year, $month, $day)
{
    $firstMondayThisWeek = new DateTime($year . '/' . $month . '/' . $day, new DateTimeZone("Europe/Berlin"));
    $firstMondayThisWeek->modify('tomorrow');
    $firstMondayThisWeek->modify('last Monday');

    $nextSevenDays = new DatePeriod(
        $firstMondayThisWeek,
        DateInterval::createFromDateString('+1 day'),
        6
    );

    return $nextSevenDays;
}

而这个函数构建数组:

public function getWeekAndDays($year, $month)
{
    $weeksInMonth = Carbon::createFromDate($year, $month)->endOfMonth()->weekOfMonth;   
    $weekBegin = Carbon::createFromDate($year, $month)->startOfMonth();

    $weeks = [];

    for($i=1; $i<=$weeksInMonth; $i++)
    {
        $collection = new \stdClass();
        $collection->week = $i;
        $collection->days = $this->getDaysOfWeek($year, $month, $weekBegin->day);

        $weekBegin->addWeek(0);

        $weeks[] = $collection;
    }

    return $weeks;
}

除了2月份以外的所有月份我都会有5周的时间.对于二月份,我需要4个星期,所以我无法保存月份重叠的日子.

我在这里完全错了吗？有什么方法可以解决这个问题？

Answer 1

我的朋友感觉到你的痛苦,使用日历数据很烦人.这是我后来编写的一个函数,它构建了一个由数月和数天组成的数组.这不是最干净的代码,但它的工作原理.

它将从您传入的日期开始$today为"Ymd"(或默认为当前日期),然后返回当前月的第一周,从那里开始,然后继续数$scheduleMonths月建立一个按月索引的数组然后按周.

这里有点难以解释,但它是自包含的,所以你可以将它复制/粘贴到你的代码中,然后dd()输出看看它看起来是什么样的,如果它适合你,并从那里修改它.您可能需要调整一些格式,因为它是针对我的特定用例而做的,但业务逻辑应该是合理的.

您应该能够从输出中提取给定月份的周数(因此,如果您需要的话,只要您确认它正常工作,就可以简化此操作).

public function getWeeks($today = null, $scheduleMonths = 6) {

    $today = !is_null($today) ? Carbon::createFromFormat('Y-m-d',$today) : Carbon::now();

    $startDate = Carbon::instance($today)->startOfMonth()->startOfWeek()->subDay(); // start on Sunday
    $endDate = Carbon::instance($startDate)->addMonths($scheduleMonths)->endOfMonth();
    $endDate->addDays(6 - $endDate->dayOfWeek);

    $epoch = Carbon::createFromTimestamp(0);
    $firstDay = $epoch->diffInDays($startDate);
    $lastDay = $epoch->diffInDays($endDate);

    $week=0;
    $monthNum = $today->month;
    $yearNum = $today->year;
    $prevDay = null;
    $theDay = $startDate;
    $prevMonth = $monthNum;

    $data = array();

    while ($firstDay < $lastDay) {

        if (($theDay->dayOfWeek == Carbon::SUNDAY) && (($theDay->month > $monthNum) || ($theDay->month == 1))) $monthNum = $theDay->month;
        if ($prevMonth > $monthNum) $yearNum++;

        $theMonth = Carbon::createFromFormat("Y-m-d",$yearNum."-".$monthNum."-01")->format('F Y');

        if (!array_key_exists($theMonth,$data)) $data[$theMonth] = array();
        if (!array_key_exists($week,$data[$theMonth])) $data[$theMonth][$week] = array(
            'day_range' => '',
        );

        if ($theDay->dayOfWeek == Carbon::SUNDAY) $data[$theMonth][$week]['day_range'] = sprintf("%d-",$theDay->day);
        if ($theDay->dayOfWeek == Carbon::SATURDAY) $data[$theMonth][$week]['day_range'] .= sprintf("%d",$theDay->day);

        $firstDay++;
        if ($theDay->dayOfWeek == Carbon::SATURDAY) $week++;
        $theDay = $theDay->copy()->addDay();
        $prevMonth = $monthNum;
    }

    $totalWeeks = $week;

    return array(
        'startDate' => $startDate,
        'endDate' => $endDate,
        'totalWeeks' => $totalWeeks,
        'schedule' => $data,
    );

}

我希望这可以帮助你至少开始!