PHP中的日期函数问题

时间:2012-03-30 12:25:26

标签: php date

我正在制作每周时间表报告。

我根据当前日期生成一周。请参阅以下代码。

<?php 
    $date = mktime(0, 0, 0, date('m'), date('d'), date('Y')); 
    $week = (int)date('W', $date); 
    $year = date('Y');

    for($day=1; $day<=7; $day++)
    {
        echo date('M dS, Y', strtotime($year."W".$week.$day));
    }
?>

这很好,但是当我尝试在几周之间导航时,我遇到了问题。第9周我将收到日期01-03-1970。它没有产生2月的周日。

还尝试使用静态日期03-02-2012但获得相同的随机日期。

$week =9; //(int)date('W', $date);

另一个问题

echo date('N', strtotime('03-09-2012'));

以上声明返回1。我不相信这里的结果。

请让我知道我应该怎么做才能解决这个问题,或者帮助我找出在给定日期之前得不到星期几的方法。

8 个答案:

答案 0 :(得分:3)

我不知道您运行的是哪个版本的PHP,但是您应该使用DateTime对象DateInterval

这种方式更好,更容易使用。

答案 1 :(得分:1)

这可能会对你有所帮助。它是返回给定年份的日历日期的函数:

<?php

  /**
   * Get all the dates in the given year's calendar
   *
   * @param NULL|integer $year
   * @param string $format
   * @return array
   */
  function getCalendar($year = NULL, $format = 'Y-m-d')
  {

    // If the year is not set then use the current
    if (!isset($year))
    {
      $year = date('Y');
    }

    // Get the first day of the year
    $start = $year . '-01-01';

    // Iterate over an incremental day increase
    for ($d = 0; ; ++$d)
    {

      // Get the date
      $date = strtotime($start . " + $d day");

      // Return the current list of dates if the current date is for next year
      if ($date >= strtotime($year + 1 . '-01-01'))
      {
        return $dates;
      }

      // Get the week number
      $w = ceil(($d + 1) / 7);

      // Add the date to the array
      $dates[isset($dates[$w][7]) ? ++$w : $w][date('N', $date)] = date($format, $date);

    }

    // Return the dates array
    return $dates;

  }

  // Get the calendar for 2012
  echo '<pre>' . print_r(getCalendar(2012, 'M dS, Y'), true) . '</pre>';

这将输出:

Array
(
    [1] => Array
        (
            [7] => Jan 01st, 2012
        )

    [2] => Array
        (
            [1] => Jan 02nd, 2012
            [2] => Jan 03rd, 2012
            [3] => Jan 04th, 2012
            [4] => Jan 05th, 2012
            [5] => Jan 06th, 2012
            [6] => Jan 07th, 2012
            [7] => Jan 08th, 2012
        )

    [3] => Array
        (
            [1] => Jan 09th, 2012
            [2] => Jan 10th, 2012
            [3] => Jan 11th, 2012
            [4] => Jan 12th, 2012
            [5] => Jan 13th, 2012
            [6] => Jan 14th, 2012
            [7] => Jan 15th, 2012
        )

    [4] => Array
        (
            [1] => Jan 16th, 2012
            [2] => Jan 17th, 2012
            [3] => Jan 18th, 2012
            [4] => Jan 19th, 2012
            [5] => Jan 20th, 2012
            [6] => Jan 21st, 2012
            [7] => Jan 22nd, 2012
        )

    [5] => Array
        (
            [1] => Jan 23rd, 2012
            [2] => Jan 24th, 2012
            [3] => Jan 25th, 2012
            [4] => Jan 26th, 2012
            [5] => Jan 27th, 2012
            [6] => Jan 28th, 2012
            [7] => Jan 29th, 2012
        )

    [6] => Array
        (
            [1] => Jan 30th, 2012
            [2] => Jan 31st, 2012
            [3] => Feb 01st, 2012
            [4] => Feb 02nd, 2012
            [5] => Feb 03rd, 2012
            [6] => Feb 04th, 2012
            [7] => Feb 05th, 2012
        )

    [7] => Array
        (
            [1] => Feb 06th, 2012
            [2] => Feb 07th, 2012
            [3] => Feb 08th, 2012
            [4] => Feb 09th, 2012
            [5] => Feb 10th, 2012
            [6] => Feb 11th, 2012
            [7] => Feb 12th, 2012
        )

    [8] => Array
        (
            [1] => Feb 13th, 2012
            [2] => Feb 14th, 2012
            [3] => Feb 15th, 2012
            [4] => Feb 16th, 2012
            [5] => Feb 17th, 2012
            [6] => Feb 18th, 2012
            [7] => Feb 19th, 2012
        )

    [9] => Array
        (
            [1] => Feb 20th, 2012
            [2] => Feb 21st, 2012
            [3] => Feb 22nd, 2012
            [4] => Feb 23rd, 2012
            [5] => Feb 24th, 2012
            [6] => Feb 25th, 2012
            [7] => Feb 26th, 2012
        )

    [10] => Array
        (
            [1] => Feb 27th, 2012
            [2] => Feb 28th, 2012
            [3] => Feb 29th, 2012
            [4] => Mar 01st, 2012
            [5] => Mar 02nd, 2012
            [6] => Mar 03rd, 2012
            [7] => Mar 04th, 2012
        )

    [11] => Array
        (
            [1] => Mar 05th, 2012
            [2] => Mar 06th, 2012
            [3] => Mar 07th, 2012
            [4] => Mar 08th, 2012
            [5] => Mar 09th, 2012
            [6] => Mar 10th, 2012
            [7] => Mar 11th, 2012
        )

    [12] => Array
        (
            [1] => Mar 12th, 2012
            [2] => Mar 13th, 2012
            [3] => Mar 14th, 2012
            [4] => Mar 15th, 2012
            [5] => Mar 16th, 2012
            [6] => Mar 17th, 2012
            [7] => Mar 18th, 2012
        )

    [13] => Array
        (
            [1] => Mar 19th, 2012
            [2] => Mar 20th, 2012
            [3] => Mar 21st, 2012
            [4] => Mar 22nd, 2012
            [5] => Mar 23rd, 2012
            [6] => Mar 24th, 2012
            [7] => Mar 25th, 2012
        )

    [14] => Array
        (
            [1] => Mar 26th, 2012
            [2] => Mar 27th, 2012
            [3] => Mar 28th, 2012
            [4] => Mar 29th, 2012
            [5] => Mar 30th, 2012
            [6] => Mar 31st, 2012
            [7] => Apr 01st, 2012
        )

    [15] => Array
        (
            [1] => Apr 02nd, 2012
            [2] => Apr 03rd, 2012
            [3] => Apr 04th, 2012
            [4] => Apr 05th, 2012
            [5] => Apr 06th, 2012
            [6] => Apr 07th, 2012
            [7] => Apr 08th, 2012
        )

    [16] => Array
        (
            [1] => Apr 09th, 2012
            [2] => Apr 10th, 2012
            [3] => Apr 11th, 2012
            [4] => Apr 12th, 2012
            [5] => Apr 13th, 2012
            [6] => Apr 14th, 2012
            [7] => Apr 15th, 2012
        )

    [17] => Array
        (
            [1] => Apr 16th, 2012
            [2] => Apr 17th, 2012
            [3] => Apr 18th, 2012
            [4] => Apr 19th, 2012
            [5] => Apr 20th, 2012
            [6] => Apr 21st, 2012
            [7] => Apr 22nd, 2012
        )

    [18] => Array
        (
            [1] => Apr 23rd, 2012
            [2] => Apr 24th, 2012
            [3] => Apr 25th, 2012
            [4] => Apr 26th, 2012
            [5] => Apr 27th, 2012
            [6] => Apr 28th, 2012
            [7] => Apr 29th, 2012
        )

    [19] => Array
        (
            [1] => Apr 30th, 2012
            [2] => May 01st, 2012
            [3] => May 02nd, 2012
            [4] => May 03rd, 2012
            [5] => May 04th, 2012
            [6] => May 05th, 2012
            [7] => May 06th, 2012
        )

    [20] => Array
        (
            [1] => May 07th, 2012
            [2] => May 08th, 2012
            [3] => May 09th, 2012
            [4] => May 10th, 2012
            [5] => May 11th, 2012
            [6] => May 12th, 2012
            [7] => May 13th, 2012
        )

    [21] => Array
        (
            [1] => May 14th, 2012
            [2] => May 15th, 2012
            [3] => May 16th, 2012
            [4] => May 17th, 2012
            [5] => May 18th, 2012
            [6] => May 19th, 2012
            [7] => May 20th, 2012
        )

    [22] => Array
        (
            [1] => May 21st, 2012
            [2] => May 22nd, 2012
            [3] => May 23rd, 2012
            [4] => May 24th, 2012
            [5] => May 25th, 2012
            [6] => May 26th, 2012
            [7] => May 27th, 2012
        )

    [23] => Array
        (
            [1] => May 28th, 2012
            [2] => May 29th, 2012
            [3] => May 30th, 2012
            [4] => May 31st, 2012
            [5] => Jun 01st, 2012
            [6] => Jun 02nd, 2012
            [7] => Jun 03rd, 2012
        )

    [24] => Array
        (
            [1] => Jun 04th, 2012
            [2] => Jun 05th, 2012
            [3] => Jun 06th, 2012
            [4] => Jun 07th, 2012
            [5] => Jun 08th, 2012
            [6] => Jun 09th, 2012
            [7] => Jun 10th, 2012
        )

    [25] => Array
        (
            [1] => Jun 11th, 2012
            [2] => Jun 12th, 2012
            [3] => Jun 13th, 2012
            [4] => Jun 14th, 2012
            [5] => Jun 15th, 2012
            [6] => Jun 16th, 2012
            [7] => Jun 17th, 2012
        )

    [26] => Array
        (
            [1] => Jun 18th, 2012
            [2] => Jun 19th, 2012
            [3] => Jun 20th, 2012
            [4] => Jun 21st, 2012
            [5] => Jun 22nd, 2012
            [6] => Jun 23rd, 2012
            [7] => Jun 24th, 2012
        )

    [27] => Array
        (
            [1] => Jun 25th, 2012
            [2] => Jun 26th, 2012
            [3] => Jun 27th, 2012
            [4] => Jun 28th, 2012
            [5] => Jun 29th, 2012
            [6] => Jun 30th, 2012
            [7] => Jul 01st, 2012
        )

    [28] => Array
        (
            [1] => Jul 02nd, 2012
            [2] => Jul 03rd, 2012
            [3] => Jul 04th, 2012
            [4] => Jul 05th, 2012
            [5] => Jul 06th, 2012
            [6] => Jul 07th, 2012
            [7] => Jul 08th, 2012
        )

    [29] => Array
        (
            [1] => Jul 09th, 2012
            [2] => Jul 10th, 2012
            [3] => Jul 11th, 2012
            [4] => Jul 12th, 2012
            [5] => Jul 13th, 2012
            [6] => Jul 14th, 2012
            [7] => Jul 15th, 2012
        )

    [30] => Array
        (
            [1] => Jul 16th, 2012
            [2] => Jul 17th, 2012
            [3] => Jul 18th, 2012
            [4] => Jul 19th, 2012
            [5] => Jul 20th, 2012
            [6] => Jul 21st, 2012
            [7] => Jul 22nd, 2012
        )

    [31] => Array
        (
            [1] => Jul 23rd, 2012
            [2] => Jul 24th, 2012
            [3] => Jul 25th, 2012
            [4] => Jul 26th, 2012
            [5] => Jul 27th, 2012
            [6] => Jul 28th, 2012
            [7] => Jul 29th, 2012
        )

    [32] => Array
        (
            [1] => Jul 30th, 2012
            [2] => Jul 31st, 2012
            [3] => Aug 01st, 2012
            [4] => Aug 02nd, 2012
            [5] => Aug 03rd, 2012
            [6] => Aug 04th, 2012
            [7] => Aug 05th, 2012
        )

    [33] => Array
        (
            [1] => Aug 06th, 2012
            [2] => Aug 07th, 2012
            [3] => Aug 08th, 2012
            [4] => Aug 09th, 2012
            [5] => Aug 10th, 2012
            [6] => Aug 11th, 2012
            [7] => Aug 12th, 2012
        )

    [34] => Array
        (
            [1] => Aug 13th, 2012
            [2] => Aug 14th, 2012
            [3] => Aug 15th, 2012
            [4] => Aug 16th, 2012
            [5] => Aug 17th, 2012
            [6] => Aug 18th, 2012
            [7] => Aug 19th, 2012
        )

    [35] => Array
        (
            [1] => Aug 20th, 2012
            [2] => Aug 21st, 2012
            [3] => Aug 22nd, 2012
            [4] => Aug 23rd, 2012
            [5] => Aug 24th, 2012
            [6] => Aug 25th, 2012
            [7] => Aug 26th, 2012
        )

    [36] => Array
        (
            [1] => Aug 27th, 2012
            [2] => Aug 28th, 2012
            [3] => Aug 29th, 2012
            [4] => Aug 30th, 2012
            [5] => Aug 31st, 2012
            [6] => Sep 01st, 2012
            [7] => Sep 02nd, 2012
        )

    [37] => Array
        (
            [1] => Sep 03rd, 2012
            [2] => Sep 04th, 2012
            [3] => Sep 05th, 2012
            [4] => Sep 06th, 2012
            [5] => Sep 07th, 2012
            [6] => Sep 08th, 2012
            [7] => Sep 09th, 2012
        )

    [38] => Array
        (
            [1] => Sep 10th, 2012
            [2] => Sep 11th, 2012
            [3] => Sep 12th, 2012
            [4] => Sep 13th, 2012
            [5] => Sep 14th, 2012
            [6] => Sep 15th, 2012
            [7] => Sep 16th, 2012
        )

    [39] => Array
        (
            [1] => Sep 17th, 2012
            [2] => Sep 18th, 2012
            [3] => Sep 19th, 2012
            [4] => Sep 20th, 2012
            [5] => Sep 21st, 2012
            [6] => Sep 22nd, 2012
            [7] => Sep 23rd, 2012
        )

    [40] => Array
        (
            [1] => Sep 24th, 2012
            [2] => Sep 25th, 2012
            [3] => Sep 26th, 2012
            [4] => Sep 27th, 2012
            [5] => Sep 28th, 2012
            [6] => Sep 29th, 2012
            [7] => Sep 30th, 2012
        )

    [41] => Array
        (
            [1] => Oct 01st, 2012
            [2] => Oct 02nd, 2012
            [3] => Oct 03rd, 2012
            [4] => Oct 04th, 2012
            [5] => Oct 05th, 2012
            [6] => Oct 06th, 2012
            [7] => Oct 07th, 2012
        )

    [42] => Array
        (
            [1] => Oct 08th, 2012
            [2] => Oct 09th, 2012
            [3] => Oct 10th, 2012
            [4] => Oct 11th, 2012
            [5] => Oct 12th, 2012
            [6] => Oct 13th, 2012
            [7] => Oct 14th, 2012
        )

    [43] => Array
        (
            [1] => Oct 15th, 2012
            [2] => Oct 16th, 2012
            [3] => Oct 17th, 2012
            [4] => Oct 18th, 2012
            [5] => Oct 19th, 2012
            [6] => Oct 20th, 2012
            [7] => Oct 21st, 2012
        )

    [44] => Array
        (
            [1] => Oct 22nd, 2012
            [2] => Oct 23rd, 2012
            [3] => Oct 24th, 2012
            [4] => Oct 25th, 2012
            [5] => Oct 26th, 2012
            [6] => Oct 27th, 2012
            [7] => Oct 28th, 2012
        )

    [45] => Array
        (
            [1] => Oct 29th, 2012
            [2] => Oct 30th, 2012
            [3] => Oct 31st, 2012
            [4] => Nov 01st, 2012
            [5] => Nov 02nd, 2012
            [6] => Nov 03rd, 2012
            [7] => Nov 04th, 2012
        )

    [46] => Array
        (
            [1] => Nov 05th, 2012
            [2] => Nov 06th, 2012
            [3] => Nov 07th, 2012
            [4] => Nov 08th, 2012
            [5] => Nov 09th, 2012
            [6] => Nov 10th, 2012
            [7] => Nov 11th, 2012
        )

    [47] => Array
        (
            [1] => Nov 12th, 2012
            [2] => Nov 13th, 2012
            [3] => Nov 14th, 2012
            [4] => Nov 15th, 2012
            [5] => Nov 16th, 2012
            [6] => Nov 17th, 2012
            [7] => Nov 18th, 2012
        )

    [48] => Array
        (
            [1] => Nov 19th, 2012
            [2] => Nov 20th, 2012
            [3] => Nov 21st, 2012
            [4] => Nov 22nd, 2012
            [5] => Nov 23rd, 2012
            [6] => Nov 24th, 2012
            [7] => Nov 25th, 2012
        )

    [49] => Array
        (
            [1] => Nov 26th, 2012
            [2] => Nov 27th, 2012
            [3] => Nov 28th, 2012
            [4] => Nov 29th, 2012
            [5] => Nov 30th, 2012
            [6] => Dec 01st, 2012
            [7] => Dec 02nd, 2012
        )

    [50] => Array
        (
            [1] => Dec 03rd, 2012
            [2] => Dec 04th, 2012
            [3] => Dec 05th, 2012
            [4] => Dec 06th, 2012
            [5] => Dec 07th, 2012
            [6] => Dec 08th, 2012
            [7] => Dec 09th, 2012
        )

    [51] => Array
        (
            [1] => Dec 10th, 2012
            [2] => Dec 11th, 2012
            [3] => Dec 12th, 2012
            [4] => Dec 13th, 2012
            [5] => Dec 14th, 2012
            [6] => Dec 15th, 2012
            [7] => Dec 16th, 2012
        )

    [52] => Array
        (
            [1] => Dec 17th, 2012
            [2] => Dec 18th, 2012
            [3] => Dec 19th, 2012
            [4] => Dec 20th, 2012
            [5] => Dec 21st, 2012
            [6] => Dec 22nd, 2012
            [7] => Dec 23rd, 2012
        )

    [53] => Array
        (
            [1] => Dec 24th, 2012
            [2] => Dec 25th, 2012
            [3] => Dec 26th, 2012
            [4] => Dec 27th, 2012
            [5] => Dec 28th, 2012
            [6] => Dec 29th, 2012
            [7] => Dec 30th, 2012
        )

    [54] => Array
        (
            [1] => Dec 31st, 2012
        )

)

正如您所看到的,它的格式为$array[$week_number][$day_number](其中$day_number为1,星期一,7为星期日),$week_number最高为53或54(取决于在这一年)。

然后您可以使用以下方式获取特定周的日期:

$calendar = getCalendar();

$calendar[9];

// Or if you have PHP 5.4.0

getCalendar()[9];

我故意不包括上一年或下一年的开始和结束时间。

答案 2 :(得分:1)

以下代码

$ts = mktime(0, 0, 0, 4, 5, 2012);

$offset = date('N', $ts);

for ($i = 1 - $offset, $j = 0; $j++ < 7; $i++) {
    echo date('r', $ts + $i * 3600 * 24) . "\n";
}

输出指定日期所属的星期几:

Apr 02nd, 2012
Apr 03rd, 2012
Apr 04th, 2012
Apr 05th, 2012
Apr 06th, 2012
Apr 07th, 2012
Apr 08th, 2012

我希望这就是你所追求的。

关于strtotime的问题,检查返回的日期是否真的是你所做的日期

echo date('r', strtotime('03-09-2012'));

将日期传递给strtotime作为YYYY-MM-DD更安全。

答案 3 :(得分:1)

尽量使解决方案尽可能接近当前代码。

对于您的1970年问题:

似乎strtotime要求零周导数字在10岁以下的几周内正常工作,否则输出到1970年,忽略了一年(这对我来说这似乎是一个错误?)。虽然,星期几和星期几的支持不在strtotime的官方文档中。

所以我会替换

    $week = (int)date('W', $date); 

使用:

    $week = str_pad(date('W', $date),2,'0',STR_PAD_LEFT);

关于以下代码:

    echo date('N', strtotime('03-09-2012'));

这是返回1(星期一),因为strtotime以英国格式 d-m-Y 解释 03-09-2012 ,而不是m-d-Y的美国格式。为避免混淆,您应使用 Y-m-d 的ISO日期格式。有关详细信息,请参阅PHP manual on Date Formats

所以如果你想要2012年3月9日,你会写:

    echo date('N', strtotime('2012-03-09'));

我希望这有帮助!

答案 4 :(得分:1)

使用DateTime类(PHP 5&gt; = 5.2.0):

    $date = date_create();

    for($d=1; $d<=7; $d++){

        echo $date->format('M dS, Y')."<br />";         
        $date->modify('+1 day');

    }

答案 5 :(得分:1)

试试这个。它适用于我:

<?php 
if(isset($_GET['diffweek'])){
  $diffweek=$_GET['diffweek'];
}else{
  $diffweek=0;}

$date = mktime(0, 0, 0, date('m'), date('d'), date('Y')); 
$week = date('W', $date+$diffweek*604800); 
$year = date('Y');

for($day=1; $day<=7; $day++)
  {
  echo date('M dS, Y', strtotime($year."W".$week.$day));
  echo '<hr>';
  }

echo '<a href="?diffweek='.($diffweek-4).'">4 weeks back</a><br>';
echo '<a href="?diffweek='.($diffweek-1).'">prew. week</a><br>';
echo '<a href="?diffweek=0">this week</a><br>';
echo '<a href="?diffweek='.($diffweek+1).'">next week</a><br>';
echo '<a href="?diffweek='.($diffweek+4).'">4 week later</a><br>';
?>

答案 6 :(得分:0)

我认为strtotime的周数应该是格式化为周 - 周 - 工作日,即2012-W14-3。

for ($day=1; $day<=7; $day++) {
    echo date('M dS, Y', strtotime(date('Y') ."-W". date('W') .'-'. $day));
}

答案 7 :(得分:0)

这对你有用。第一行中的“今天”可以更改为您要测试它的日期。

<?php 
$today = strtotime('today');
$startWeek = strtotime(date('o-\\WW', $today));
$date = mktime(0, 0, 0, date('m', $startWeek), date('d', $startWeek), date('Y', $startWeek)); 
$week = (int)date('W', $date); 
$year = date('Y', $date);

for($day=0; $day < 7; $day++)
{
    echo date('M dS, Y', $today + ($day * 24 * 60 * 60)), "\n";
}
?>

希望这有帮助。