在php中将当前月份拆分为几周 [英] Split the current month in to weeks in php

问题描述

我想将当前月份分为几周，例如第一天到星期六，然后是周日到下一个星期六。例如：对于5月，我想将它分成几周

  2016-05-01至2016-05-07 
 2016-05-08至2016-05-14 
 2016-05-15至2016 -05-21 
 2016-05-22至2016-05-28 
 2016-05-29至2016-05-31 
  

如果我尝试以下代码，我没有得到确切的结果。

  <？php 
 
 $ start_date = date（'Ym-d'，strtotime（'2016-06-01'））; 
 $ end_date = date（'Y-m-d'，strtotime（'2016-06-30'））; 
 $ i = 1; 
 for（$ date = $ start_date; $ date< = $ end_date; $ date = date（'Ym-d'，strtotime（$ date。'+ 7 days'）））{
 echo getWeekDates（$ date，$ start_date，$ end_date，$ i）; 
 echo \n; 
 $ i ++; 
} 
 
函数getWeekDates（$ date，$ start_date，$ end_date，$ i）{
 $ week = date（'W'，strtotime（$ date））; 
 $ year = date（'Y'，strtotime（$ date））; 
 
 $ from = date（ Y-m-d，strtotime（ {$ year} -W {$ week} +1））; 
 if（$ from< $ start_date）$ from = $ start_date; 
 
 $ to = date（ Y-m-d，strtotime（ {$ year} -W {$ week} -7））; 
 if（$ to> $ end_date）$ to = $ end_date; 
 
 echo $ from。-。$ to。’< br>’;; 
} 
 
？> 
  

我喜欢

  2016-05-01-2016-05-01 
 2016-05-01-2016-05-08 
 2016-05-08-2016-05-15 
 2016-05-15-2016-05-22 
 2016-05-22-2016-05-29 
  

在for循环中，在检查最后一组日期时，conditon失败。因此它不计算30,31。

我该怎么做？

解决方案

DateTime，DatePeriod和DateInterval是您的朋友，可以快速地做到这一点！

请参见在线。

<上课前= lang-php prettyprint-override> <？php
/ **
* @file
* Awnser到http://stackoverflow.com/q / 37224961/392725
*
* @link http://stackoverflow.com/a/372​​28497/392725
* /
date_default_timezone_set（'Europe / Paris'）;

函数getWeekDates（DateTimeInterface $ date，$ format =‘Y-m-d’）{
$ dt = \DateTimeImmutable :: createFromMutable（$ date）;
$ first_day = $ dt-> modify（本月的第一天）；
$ last_day = $ dt-> modify（本月的最后一天）；
$ period = new \DatePeriod（
$ first_day，
\DateInterval :: createFromDateString（'this week Sunday'），
$ last_day，
\ DatePeriod :: EXCLUDE_START_DATE
）;

$ weeks = [$ first_day-> format（$ format）];
foreach（$ period as $ d）{
$ weeks [] = $ d-> modify（’-1 day’）-> format（$ format）;
$ weeks [] = $ d-> format（$ format）;
}
$ weeks [] = $ last_day-> format（$ format）;

return array_chunk（$ weeks，2）;
}

echo当月周数：\n;
$ weeks = getWeekDates（new \DateTime（’now’））；
array_walk（$ weeks，function（$ week）{
vprintf（％s to％s\n，$ week）;
}）;

echo \n 2016年5月的一周：\n;
$ weeks = getWeekDates（new \DateTime（’2016-05’））;
array_walk（$ weeks，function（$ week）{
vprintf（％s to％s\n，$ week）;
}）;

echo \n 2016年6月的一周：\n;
$ weeks = getWeekDates（new \DateTime（’2016-06’））;
array_walk（$ weeks，function（$ week）{
vprintf（％s to％s\n，$ week）;
}）;

echo \n 2016年10月的一周：\n;
$ weeks = getWeekDates（new \DateTime（’2016-10’））;
array_walk（$ weeks，function（$ week）{
vprintf（％s to％s\n，$ week）;
}）;


结果：

 当月周：
 2016-05-01至2016-05-07 
 2016-05-08至2016-05-14 
 2016-05-15至2016-05-21 
 2016-05-22至2016-05-28 
 2016-05-29至2016-05-31 
 
 2016年5月的星期：
 2016-05-01至2016-05-07 
 2016-05-08至2016-05-14 
 2016 -05-15至2016-05-21 
 2016-05-22至2016-05-28 
 2016-05-29至2016-05-31 
 
 2016年6月：
 2016-06-01至2016-06-04 
 2016-06-05至2016-06-11 
 2016-06-12至2016-06-18 
 2016-06-19至2016-06-25 
 2016-06-26至2016-06-30 
 
 2016年10月的星期：
 2016 -10-01至2016-10-01 
 2016-10-02至2016-10-08 
 2016-10-09至2016-10-15 
 2016-10-16至2016-10-22 
 2016-10-23至2016-10-29 
 2016-10-30至2016-10-31 
  

I want to split the current month in to weeks like first day to saturday and then sunday to next saturday.For ex: for May month, So i want to split that like

2016-05-01 to 2016-05-07
2016-05-08 to 2016-05-14
2016-05-15 to 2016-05-21
2016-05-22 to 2016-05-28
2016-05-29 to 2016-05-31

if i try the below code,i didnt get exact result.

<?php

$start_date = date('Y-m-d', strtotime('2016-06-01'));
$end_date = date('Y-m-d', strtotime('2016-06-30'));
$i=1;
for($date = $start_date; $date <= $end_date; $date = date('Y-m-d',       strtotime($date. ' + 7 days'))) {
    echo getWeekDates($date, $start_date, $end_date, $i);
    echo "\n";
    $i++;
}

function getWeekDates($date, $start_date, $end_date, $i) {
    $week =  date('W', strtotime($date));
    $year =  date('Y', strtotime($date));

    $from = date("Y-m-d", strtotime("{$year}-W{$week}+1")); 
    if($from < $start_date) $from = $start_date;

    $to = date("Y-m-d", strtotime("{$year}-W{$week}-7"));   
    if($to > $end_date) $to = $end_date;

    echo $from." - ".$to.'<br>';    
}

?>

i got like

2016-05-01 - 2016-05-01
2016-05-01 - 2016-05-08
2016-05-08 - 2016-05-15
2016-05-15 - 2016-05-22
2016-05-22 - 2016-05-29

In for loop, while checking last set of days, conditon get failed .so it doesnt calculate 30,31.

How can i do that?

解决方案

DateTime, DatePeriod and DateInterval are your friends to do that quickly!

See online.

<?php
/**
 * @file
 * Awnser to http://stackoverflow.com/q/37224961/392725
 *
 * @link http://stackoverflow.com/a/37228497/392725
 */
date_default_timezone_set('Europe/Paris');

function getWeekDates(DateTimeInterface $date, $format = 'Y-m-d') {
  $dt        = \DateTimeImmutable::createFromMutable($date);
  $first_day = $dt->modify('first day of this month');
  $last_day  = $dt->modify('last day of this month');
  $period    = new \DatePeriod(
    $first_day,
    \DateInterval::createFromDateString('sunday this week'),
    $last_day,
    \DatePeriod::EXCLUDE_START_DATE
  );

  $weeks = [$first_day->format($format)];
  foreach ($period as $d) {
    $weeks[] = $d->modify('-1 day')->format($format);
    $weeks[] = $d->format($format);
  }
  $weeks[] = $last_day->format($format);

  return array_chunk($weeks, 2);
}

echo "Weeks of the current month:\n";
$weeks = getWeekDates(new \DateTime('now'));
array_walk($weeks, function ($week) {
  vprintf("%s to %s\n", $week);
});

echo "\nWeeks of the month may 2016:\n";
$weeks = getWeekDates(new \DateTime('2016-05'));
array_walk($weeks, function ($week) {
  vprintf("%s to %s\n", $week);
});

echo "\nWeeks of the month june 2016:\n";
$weeks = getWeekDates(new \DateTime('2016-06'));
array_walk($weeks, function ($week) {
  vprintf("%s to %s\n", $week);
});

echo "\nWeeks of the month october 2016:\n";
$weeks = getWeekDates(new \DateTime('2016-10'));
array_walk($weeks, function ($week) {
  vprintf("%s to %s\n", $week);
});

Result:

Weeks of the current month:
2016-05-01 to 2016-05-07
2016-05-08 to 2016-05-14
2016-05-15 to 2016-05-21
2016-05-22 to 2016-05-28
2016-05-29 to 2016-05-31

Weeks of the month may 2016:
2016-05-01 to 2016-05-07
2016-05-08 to 2016-05-14
2016-05-15 to 2016-05-21
2016-05-22 to 2016-05-28
2016-05-29 to 2016-05-31

Weeks of the month june 2016:
2016-06-01 to 2016-06-04
2016-06-05 to 2016-06-11
2016-06-12 to 2016-06-18
2016-06-19 to 2016-06-25
2016-06-26 to 2016-06-30

Weeks of the month october 2016:
2016-10-01 to 2016-10-01
2016-10-02 to 2016-10-08
2016-10-09 to 2016-10-15
2016-10-16 to 2016-10-22
2016-10-23 to 2016-10-29
2016-10-30 to 2016-10-31

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