DatePeriod::__construct

(PHP 5 >= 5.3.0, PHP 7)

DatePeriod::__construct — Creates a new DatePeriod object

Descrierea

public DatePeriod::__construct ( DateTimeInterface $start , DateInterval $interval , int $recurrences [, int $options ] )
public DatePeriod::__construct ( DateTimeInterface $start , DateInterval $interval , DateTimeInterface $end [, int $options ] )
public DatePeriod::__construct ( string $isostr [, int $options ] )

Creates a new DatePeriod object.

Parametri

start

The start date of the period.

interval

The interval between recurrences within the period.

recurrences

The number of recurrences.

end

The end date of the period.

isostr

An ISO 8601 repeating interval specification.

options

Can be set to DatePeriod::EXCLUDE_START_DATE to exclude the start date from the set of recurring dates within the period.

Istoricul schimbărilor

Versiune Descriere
5.5.8 end type changed to DateTimeInterface. Previously, DateTime.
5.5.0 start type changed to DateTimeInterface. Previously, DateTime.

Exemple

Example #1 DatePeriod example

<?php
$start = new DateTime('2012-07-01');
$interval = new DateInterval('P7D');
$end = new DateTime('2012-07-31');
$recurrences = 4;
$iso = 'R4/2012-07-01T00:00:00Z/P7D';

// All of these periods are equivalent.
$period = new DatePeriod($start, $interval, $recurrences);
$period = new DatePeriod($start, $interval, $end);
$period = new DatePeriod($iso);

// By iterating over the DatePeriod object, all of the
// recurring dates within that period are printed.
foreach ($period as $date) {
    echo $date->format('Y-m-d')."\n";
}
?>

Exemplul de mai sus va afișa:

2012-07-01
2012-07-08
2012-07-15
2012-07-22
2012-07-29

Example #2 DatePeriod example with DatePeriod::EXCLUDE_START_DATE

<?php
$start = new DateTime('2012-07-01');
$interval = new DateInterval('P7D');
$end = new DateTime('2012-07-31');

$period = new DatePeriod($start, $interval, $end,
                         DatePeriod::EXCLUDE_START_DATE);

// By iterating over the DatePeriod object, all of the
// recurring dates within that period are printed.
// Note that, in this case, 2012-07-01 is not printed.
foreach ($period as $date) {
    echo $date->format('Y-m-d')."\n";
}
?>

Exemplul de mai sus va afișa:

2012-07-08
2012-07-15
2012-07-22
2012-07-29

Note

Unbound numbers of repetitions as specified by ISO 8601 section 4.5 "Recurring time interval" are not supported, i.e. neither passing "R/..." as isostr nor passing NULL as end would work.