【问题标题】:Get all weeks of specified month, weeks from Sun-Sat获取指定月份的所有星期,从星期日到星期六的星期
【发布时间】:2020-08-05 02:18:33
【问题描述】:

编辑

我在下面直接尝试了这段代码。它很接近,但仍然没有找到从每月 1 日到第 1 个星期六的周数,然后是从周日到周六之后的每周,直到最后一个周日到月底。

function get_weeks($month, $year) {
    $weeks = array();

    $date = DateTime::createFromFormat('mY', $month.$year);
    $date->modify('first day of this month');

    $end = clone $date;
    $end->modify('last day of this month');
    $interval = DateInterval::createFromDateString('1 week');
    $period = new DatePeriod($date, $interval, $end);

    $counter = 1;
    foreach ($period as $dt) {
        $end_of_week = clone $dt;
        $end_of_week->modify('this Saturday');
        $weeks[] = sprintf("Week %u: %s - %s", 
            $counter,
            $dt->format('Y-m-d'),
            $end_of_week->format('Y-m-d')
        );      
        $counter++;
    }

    return $weeks;
}
$weeks = get_weeks('08', '2020');
print_r($weeks); 

打印出来:

Array
(
[0] => Week 1: 2020-08-01 - 2020-08-01
[1] => Week 2: 2020-08-08 - 2020-08-08
[2] => Week 3: 2020-08-15 - 2020-08-15
[3] => Week 4: 2020-08-22 - 2020-08-22
[4] => Week 5: 2020-08-29 - 2020-08-29
)

但它应该改为打印:

Array
(
[0] => Week 1: 2020-08-01 - 2020-08-01 //correct for this month since 1st day of month and 1st Saturday of this month just happen to be on the same day
[1] => Week 2: 2020-08-02 - 2020-08-08 
[2] => Week 3: 2020-08-09 - 2020-08-15 
[3] => Week 4: 2020-08-16 - 2020-08-22 
[4] => Week 5: 2020-08-23 - 2020-08-29 
[5] => Week 6: 2020-08-30 - 2020-08-31 //last Sunday until end of month
)

原帖

我的目标是提取指定月份的指定周数的时间戳数据。我的一周从周日开始,周六结束。因此,我试图在特定月份的每周集中获取所有时间戳,以便我可以将其绘制出来,显示每周的总小时数。但首先我需要为该月指定每周的开始和结束。我可以为特定周的每个工作日执行此操作,但周/月设置对我来说太复杂了。

这是我所拥有的:

function task_range_month_week($monthweek, $cap_start_raw, $cap_end_raw) {
    $start    = new DateTime(date('Y-m-d',$cap_start_raw));
    $end      = new DateTime(date('Y-m-d',$cap_end_raw+86399));        
    $interval = DateInterval::createFromDateString('1 week');
    $period   = new DatePeriod($start, $interval, $end);
    foreach ($period as $dt) {
        //just make it return the values for only a single (specified) week of the month
        //if ($dt->format("N") == $monthweek) {
            $cap_start = strtotime($dt->format("Y-m-d 00:00:00"));
            $cap_end = strtotime($dt->format("Y-m-d 23:59:59"));
        //}
}

然后我会这样调用函数,其中$cap_start_raw$cap_end_raw 是月份的开始日期和结束日期,$monthweek 是指定的周数(1-6)。因此,我试图从周日到周六(或该月的任何部分工作日)获取该特定周的时间。

$cap_start$cap_end 然后将是指定周范围的输出。

我想用这个来调用那个函数:

//get the 1st week of August 2020, Sun 00:00:00 - Sat 11:59:59 (or whatever days of the month are still in this week)
task_range_month_week(1, 1596240000, 1598918399) 
//this would output the 2 new timestamps for that week(1)
//$cap_start = 1XXXXXXXXX;
//$cap_end = 1XXXXXXXXX;

//get the 2nd week of August 2020, Sun 00:00:00 - Sat 11:59:59 (or whatever days of the month are still in this week)
task_range_month_week(2, 1596240000, 1598918399)
//this would output the 2 new timestamps for that week(2)
//$cap_start = 1XXXXXXXXX;
//$cap_end = 1XXXXXXXXX;
etc...

我相信它与 $dt->format() 部分有关,但不知道如何让它工作。

预期的输出将返回 $cap_start 和 $cap_end 时间戳值。

另一种说法是......

...它返回预期输出范围的新开始和结束时间戳。我为每个星期调用 task_range_month_week() 函数来查找单个星期的开始和结束($cap_start、$cap_end 输出)。因此,由于 2020 年 8 月的日期跨越 6 个不同的日历周,因此我将调用该函数 6 次,在本月的情况下,每次都会为 1-6 指定一个 $monthweek。然后在该月的第一周的情况下,新的输出范围将在该月的第一天的 00:00:00 有 $cap_start,并且由于 $cap_end 恰好落在星期六,这是我想结束我的几周(从星期日开始),它应该在同一天的 23:59:59 输出 $cap_end。然后下周将从星期日到星期六,依此类推,直到找到该月的所有一周的开始和结束时间,第一周和最后一周只有最大截止日期的范围,即月份开始和结束时间结束时间。

如果我将它设置为“1 天”而不是“1 周”,并取消注释 if ($dt->format("N") == $monthweek),那么它适用于我已经为该图表设置的指定周的天数。但是如何使它适用于周设置?

有什么想法吗?

【问题讨论】:

  • task_range_month_week() 是否应该返回一个时间戳数组,范围内的每一天一个时间戳?
  • @kmoser 我更新了帖子。希望这有助于更好地解释。

标签: php datetime week-number dateinterval


【解决方案1】:

我决定从算术角度而不是日期时间角度来完成这项任务。

也许有一种我没有考虑过的优雅的日期时间对象变异技术,但我认为我的函数调用轻方法并不可怕。

我相信我的变量命名将通过我的脚本提供足够的逻辑指导,但实际上我将给定一周的开始和结束天数增加了一个变量/计算量,并在代表整月。

代码:(Demo)

function get_weeks($month, $year) {
    $weeks = [];
    $ym = $year . '-' . $month;
    $final = date('t', strtotime($ym));
    $firstSat = date('d', strtotime("first Saturday of $ym"));
    $d = 1;
    $weekNo = 0;

    do {
        $weekEnd = $d === 1 ? $firstSat : min($final, $d + 6);
        $weeks[] = sprintf(
            "Week %d: %s-%02d - %s-%02d",
            ++$weekNo,
            $ym,
            $d,
            $ym,
            $weekEnd
        );
        $d = $weekEnd + 1;
    } while ($weekEnd < $final);

    return $weeks;
}
foreach (['01','02','03','04','05','06', '07', '08', '09', '10', '11', '12'] as $month) {
    echo var_export(get_weeks($month, '2020'), true) . "\n";
}

输出:

array (
  0 => 'Week 1: 2020-01-01 - 2020-01-04',
  1 => 'Week 2: 2020-01-05 - 2020-01-11',
  2 => 'Week 3: 2020-01-12 - 2020-01-18',
  3 => 'Week 4: 2020-01-19 - 2020-01-25',
  4 => 'Week 5: 2020-01-26 - 2020-01-31',
)
array (
  0 => 'Week 1: 2020-02-01 - 2020-02-01',
  1 => 'Week 2: 2020-02-02 - 2020-02-08',
  2 => 'Week 3: 2020-02-09 - 2020-02-15',
  3 => 'Week 4: 2020-02-16 - 2020-02-22',
  4 => 'Week 5: 2020-02-23 - 2020-02-29',
)
array (
  0 => 'Week 1: 2020-03-01 - 2020-03-07',
  1 => 'Week 2: 2020-03-08 - 2020-03-14',
  2 => 'Week 3: 2020-03-15 - 2020-03-21',
  3 => 'Week 4: 2020-03-22 - 2020-03-28',
  4 => 'Week 5: 2020-03-29 - 2020-03-31',
)
array (
  0 => 'Week 1: 2020-04-01 - 2020-04-04',
  1 => 'Week 2: 2020-04-05 - 2020-04-11',
  2 => 'Week 3: 2020-04-12 - 2020-04-18',
  3 => 'Week 4: 2020-04-19 - 2020-04-25',
  4 => 'Week 5: 2020-04-26 - 2020-04-30',
)
array (
  0 => 'Week 1: 2020-05-01 - 2020-05-02',
  1 => 'Week 2: 2020-05-03 - 2020-05-09',
  2 => 'Week 3: 2020-05-10 - 2020-05-16',
  3 => 'Week 4: 2020-05-17 - 2020-05-23',
  4 => 'Week 5: 2020-05-24 - 2020-05-30',
  5 => 'Week 6: 2020-05-31 - 2020-05-31',
)
array (
  0 => 'Week 1: 2020-06-01 - 2020-06-06',
  1 => 'Week 2: 2020-06-07 - 2020-06-13',
  2 => 'Week 3: 2020-06-14 - 2020-06-20',
  3 => 'Week 4: 2020-06-21 - 2020-06-27',
  4 => 'Week 5: 2020-06-28 - 2020-06-30',
)
array (
  0 => 'Week 1: 2020-07-01 - 2020-07-04',
  1 => 'Week 2: 2020-07-05 - 2020-07-11',
  2 => 'Week 3: 2020-07-12 - 2020-07-18',
  3 => 'Week 4: 2020-07-19 - 2020-07-25',
  4 => 'Week 5: 2020-07-26 - 2020-07-31',
)
array (
  0 => 'Week 1: 2020-08-01 - 2020-08-01',
  1 => 'Week 2: 2020-08-02 - 2020-08-08',
  2 => 'Week 3: 2020-08-09 - 2020-08-15',
  3 => 'Week 4: 2020-08-16 - 2020-08-22',
  4 => 'Week 5: 2020-08-23 - 2020-08-29',
  5 => 'Week 6: 2020-08-30 - 2020-08-31',
)
array (
  0 => 'Week 1: 2020-09-01 - 2020-09-05',
  1 => 'Week 2: 2020-09-06 - 2020-09-12',
  2 => 'Week 3: 2020-09-13 - 2020-09-19',
  3 => 'Week 4: 2020-09-20 - 2020-09-26',
  4 => 'Week 5: 2020-09-27 - 2020-09-30',
)
array (
  0 => 'Week 1: 2020-10-01 - 2020-10-03',
  1 => 'Week 2: 2020-10-04 - 2020-10-10',
  2 => 'Week 3: 2020-10-11 - 2020-10-17',
  3 => 'Week 4: 2020-10-18 - 2020-10-24',
  4 => 'Week 5: 2020-10-25 - 2020-10-31',
)
array (
  0 => 'Week 1: 2020-11-01 - 2020-11-07',
  1 => 'Week 2: 2020-11-08 - 2020-11-14',
  2 => 'Week 3: 2020-11-15 - 2020-11-21',
  3 => 'Week 4: 2020-11-22 - 2020-11-28',
  4 => 'Week 5: 2020-11-29 - 2020-11-30',
)
array (
  0 => 'Week 1: 2020-12-01 - 2020-12-05',
  1 => 'Week 2: 2020-12-06 - 2020-12-12',
  2 => 'Week 3: 2020-12-13 - 2020-12-19',
  3 => 'Week 4: 2020-12-20 - 2020-12-26',
  4 => 'Week 5: 2020-12-27 - 2020-12-31',
)

【讨论】:

    【解决方案2】:

    我有一个函数,它根据特定月份和年份中的特定周数 (1-6) 以 DateTime 对象数组的形式提供周开始和结束日期。该函数在发生错误时返回 NULL。

    function datesWeekInMonth(int $monthWeekNumber, int $month, int $year):?array {
      //week from Sun to Sat ! 
      $sat = date_create('first Sat of '.$year.'-'.$month);
      if($monthWeekNumber < 1 OR $sat === false) return NULL;
      if($monthWeekNumber == 1) return [date_create($year.'-'.$month.'-01'),$sat];
      $lastDayOfMonth = date_create('last Day of '.$year.'-'.$month);
      for($i=1;$i<$monthWeekNumber;$i++) {
        $sun = (clone $sat)->modify('+1 Day');
        $sat->modify('next Sat');
      }
      if($sun > $lastDayOfMonth) return NULL;
      return [$sun,min($sat,$lastDayOfMonth)];
    }
    

    使用示例:

    $result = datesWeekInMonth(3,8,2020); //third week of August 2020
    
    var_dump($result);
    /*
    array(2) {
      [0]=>
      object(DateTime)#4 (3) {
        ["date"]=>
        string(26) "2020-08-09 00:00:00.000000"
        ["timezone_type"]=>
        int(3)
        ["timezone"]=>
        string(13) "Europe/Berlin"
      }
      [1]=>
      object(DateTime)#1 (3) {
        ["date"]=>
        string(26) "2020-08-15 00:00:00.000000"
        ["timezone_type"]=>
        int(3)
        ["timezone"]=>
        string(13) "Europe/Berlin"
      }
    }
    */
    

    【讨论】:

    • 谢谢,我试过了,但它似乎没有达到我想要的效果。
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