DatePeriod::__construct

(PHP 5 >= 5.3.0)

DatePeriod::__construct — Creates new DatePeriod object

Beskrivelse

public DatePeriod::__construct() ( DateTime $start , DateInterval $interval , int $recurrences [, int $options ] )

public DatePeriod::__construct() ( DateTime $start , DateInterval $interval , DateTime $end [, int $options ] )

public DatePeriod::__construct() ( string $isostr [, int $options ] )

Creates new DatePeriod object.

Parametre

start: Start date.
interval: Interval.
recurrences: Number of recurrences.
end: End date.
isostr: String containing the ISO interval.
options: Can be set to DatePeriod::EXCLUDE_START_DATE.

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User Contributed Notes 3 notes

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simon dot kohlmeyer at mayflower dot de ¶

13 years ago


I found two things useful to know that aren't covered here.



1. endDate is excluded:



<?php

$i = new DateInterval('P1D');

$d1 = new Datetime();

$d2 = clone $d1; $d2->add($i);

foreach(new DatePeriod($d1, $i, $d2) as $d) {

    echo $d->format('Y-m-d H:i:s') . "\n";

}

?>



Will output:

2010-11-03 12:39:53



(Another one because I got it wrong at first)

2. For the first form, recurrences really means REcurrences, not occurences.



<?php

$i = new DateInterval('P1D');

$d = new Datetime();

foreach(new DatePeriod($d, $i, 1) as $d) {

    echo $d->format('Y-m-d H:i:s') . "\n";

}

?>



Will output:

2010-11-03 12:41:05

2010-11-04 12:41:05

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lars at hp-designs dot com ¶

11 years ago


When you add the time 23:59:59 to the end DateTime object something like the following then the end date will be included in the period:



<?php

$date_start = new DateTime('2012-03-12');

$date_end = new DateTime('2012-03-22 23:59:59');



$interval = '+2 days';

$date_interval = DateInterval::createFromDateString($interval);



$period = new DatePeriod($date_start, $date_interval, $date_end, DatePeriod::EXCLUDE_START_DATE);



foreach($period as $dt) {

 echo $dt->format('d/m');

}

?>



OUTPUT:

14/03

16/03

18/03

20/03

22/03

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youssef dot benhssaien at gmail dot com ¶

4 years ago


The parameter isostr should accept an ISO 8601 format, but doing this is not work :
<?php
      $dateStart = date_create('first day of next month this year');

      $isoStr = $dateStart ->format(DateTimeInterface::ISO8601);
      $datePeriod = new DatePeriod("R10/{$isoStr}/P1M");
     // Throw Exception : DatePeriod::__construct(): Unknown or bad format (R10/2020-02-01T22:52:26+0000Z/P1M)
     
     // While doing it by this way works
    $datePeriod = new DatePeriod($dateStart , \DateInterval::createFromDateString("+1 month"), 10);
?>

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